Geographical weather system problems

Air pressure in India is low. This season is summer in the northern hemisphere. The noon sun height in Beijing reaches the maximum value in a year, and A is correct; An agricultural area is controlled by low pressure and may suffer from typhoon. B is correct; B the height of the snow line in the northern mountainous area is the highest in a year, and C is wrong; The southwest monsoon is blowing in the North Indian Ocean, and the direction of ocean current is clockwise, so the ships sailing from west to east are smooth and D is correct. So I chose ABD.