Consider the following statements about transport-lag 1. It is of non-minimum phase behaviour2. It normally exists in thermal, hydraulic and pneumatic systems3. It has an excessive phase lag with no attenuation at high frequency Which of the above statements are correct?

Consider the following statements about transport-lag 1. It is of non-

1.	Consider the following statements about transport-lag 1. It is of non-minimum phase behaviour2. It normally exists in thermal, hydraulic and pneumatic systems3. It has an excessive phase lag with no attenuation at high frequency Which of the above statements are correct?
A.	1 only
B.	1 and 2
C.	All
D.	2 and 3
Answer» D. 2 and 3