There are few sentences in each question. Each sentence has pairs of words/phrases that are italicized/highlighted. From the italicized/highlighted word(s)/phrase(s), select the most appropriate word(s)/phrase(s) to form correct sentences. Then choose the best option.
i. Our confidence in cricket has been seriously undermined [A]/underrated [B] by the recent match fixing scandal.
ii. His valid [A]/vapid [B] talk failed to impress the investors.
iii. It was so hot that he walked in the shade [A]/shadow [B] of the tree.