The correct options are
B Land breeze is the wind flowing from the land towards the sea.
D Sea breeze usually occurs during day time.
During day time, when the land is warmer than the sea, air from the land rises up causing a low pressure situation that sucks in the air from the sea. In other words, the wind flows from the sea towards the land which is called 'sea breeze' and it occurs usually during day time.
The opposite happens during night, when the sea is warmer than the land. The low pressure region created over the sea pulls the wind in from the land. So, 'land breeze' flows from the land to the sea.