Correct Answer: E
Explanation:
If fish fried is served on Saturday, it must be served on Tuesday and Thursday as well (otherwise, fish fried would be served on at least two consecutive days), and vegetable must be served on Sunday rather than Saturday (otherwise, four foods would be served on Saturday). Given these conclusions, you can eliminate A, B, C, and D because in each one at least four foods would be served on the day specified by the answer choice. E could be true, however. Korma and mutton karahi can both be served on Friday, since vegetable is the only food item that must be served on that day.