For X (study) visa, which one I should select from the following items written in the Visa Application Form of the People’s Republic of China. My Study duration is 3 years. Please help me to find out answers of Q2.2 and Q2.4 in the visa application form.

Q 2.2 计划入境次数 /
Intended Number of Entries

一次入出境有效 (3 个月内有效) / Single entry valid for 3 months;
二次入出境有效 (6 个月内有效) / Double entry valid for 6 months;
半年内多次入出境有效 / Multi-entry valid for 6 months;
一年内多次入出境有效 / Multi-entry valid for 12 months.


Q2.4 预计你一次在华停留的最长天数 / Your Longest Intended Stay in China:...........Days

(how many days should I input for getting X visa. The study duration is 3 years?)