Something's wrong there. If it's a Transverse Mercator with a prime meridian of 40E, the scale 90 degrees off at 130E is infinity [1/cos(130-40) = 1/cos(90) = 1/0].
Also, assuming a reference scale of 1.0000, answers a & c, and b & d are one and the same.
Can you check you haven't made a transcription error in your post?