The correct options are
C evening
D night
Land breeze usually occurs during the evening and the night time. Due to the uneven heating and cooling of the sea and the land, the sea warms up and cools down late as compared to the land. During evening and night, a low pressure area develops over the sea that pulls the cool air from the land. This air flows as a gentle breeze from the land to the sea which is called as the 'land breeze'.