17.
The answer is: A
Explanation
The correct option is:
A: Valid
Explanation:
Under Muslim Sharia Law, a Sunni male can marry a Muslim female (of any sect) or a Kitabia, i.e., a woman who believes in a revealed religion possessing a Divine Book viz Islam, Christianity, and Judaism. Marriage with the Kitabia is valid under the Sunni Law. However, he cannot marry an idolatress or a fire-worshiper.
Therefore, the correct option is A: Valid.
In summary, according to Muslim Sharia Law, a Sunni Muslim male can marry a Muslim female or a Kitabia. Marriage with the Kitabia is valid under the Sunni Law.