The value of \(\frac{{\sin \theta \; + \;cos\theta - 1}}{{\sin \theta - cos\theta \; + \;1}} \times \frac{{{{\tan }^2}\theta \left( {cose{c^2}\theta - 1} \right)}}{{sec\theta - tan\theta }}\) is:

• A. 1/2
• B. -1
• C. 1
• D. 0