Explanation

The 'eye' of a tropical cyclone is the calm central region, typically 30-65 km across, characterised by the lowest central pressure of the entire storm system. It has clear skies and light winds because air subsides there, and the core is anomalously warm (a warm-core system), so it shows abnormally high temperature relative to its surroundings. Options (B) and (C) wrongly give low temperature, and (D) wrongly gives dense cloud cover, which belongs to the eyewall. The correct description is option (A).