1. (1 credit _ _) True or False: Answer "True" or "False" for each of the following statements by darkly shading the appropriate bubble. No justification required. (a) O True O False For any vector field F, and any two paths Ci and C2 with the same starting and ending points, F . dr = F . dr. (b) O True O False The flux integral F . dS is equal to zero if F is parallel to the surface S at every point. (c) O True False The expression V . (Vf) is a scalar. (d) O True False The unit disk x2 + y2