Where can muslims find guidance on everyday issues such as family, marriage and business?

The answer to the question stated above is:
Muslims find guidance on everyday issues such as family, marriage and business in both the Qur'an and the Sunna. It's letter C.

Choices to this question are:
A)In the Qur'an
b)In the Sunna
c)In both the Qur'an and the Sunna
d)In neither the Qur'an nor the Sunna 

Muslims can find guidance on everyday issues such as family, marriage and business either in the Qu'ran or their local Mosques. There they can consult their imams and talkwith them about their issues. 

Imay be able to but what’s the question?