The plot representing the variation of CC with the residence time in a PFR for substrate limiting microbial fermentation reaction is ____

• A. <img alt="Plot of variation of CC with residence time in PFR for microbial fermentation - option a" class="alignnone size-full wp-image-284423" height="327" sizes="(max-width: 350px) 100vw, 350px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2a.png 350w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2a-300x280.png 300w" width="350"/>
• B. <img alt="Plot of variation of CC with residence time in PFR for microbial fermentation - option b" class="alignnone size-full wp-image-284422" height="327" sizes="(max-width: 354px) 100vw, 354px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2b.png 354w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2b-300x277.png 300w" width="354"/>
• C. <img alt="Plot of variation of CC with residence time in PFR for microbial fermentation - option c" class="alignnone size-full wp-image-284421" height="329" sizes="(max-width: 345px) 100vw, 345px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2c.png 345w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2c-300x286.png 300w" width="345"/>
• D. <img alt="Plot of variation of CC with residence time in PFR for microbial fermentation - option d" class="alignnone size-full wp-image-284420" height="318" sizes="(max-width: 350px) 100vw, 350px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2d.png 350w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-interview-questions-answers-experienced-q2d-300x273.png 300w" width="350"/>