In this question given below are some idioms/phrases followed by four alternative meanings for each. Choose the most appropriate answer from among the options (a), (b), (c) or (d).

Be as sharp as a tack

‘Operation Cactus’ is the name given to Indian Military intervention in

Prof. Vijay Raghavan, an Indian scientist, who has been elected Fellow of Royal Society in…

The UN has recently passed a resolution against human right violation in a South Asian…

A high level committee set up by the Ministry of Housing and Urban Poverty Alleviation…

Suppose, the Naxalites have kidnapped a Deputy Commissioner from Baster region in Chhattisgarh and taken…