Answer:
A
Explanation:
while i really wanna say none of the above because nothing technically "causes" someone feeling a different sexaul attraction/orientation, and they shouldn't be teaching that in school becuase its false :(
no it is not it is a uncomplete sentence
有什么其他科目可以帮忙的吗？
（我也不知道唉，正烦恼呢。）
