Question

An organic molecule will always contain _____. a.carbon b.carbon and hydrogen c.hydrogen d.O, H, and C

Answer 1

An organic molecule will always contain CARBON. 
The correct option is A.
An organic molecule or compound refers to a chemical entity in which one or more atoms of carbon are bonded covalently with atoms of other elements. Because of the number of valence electron that carbon possess, it has the capacity to form different types of chemical bond with different types of elements. 

Answer 2

Base one the question which is asking to choose among the following choices that states the element that the organic molecule will always contain, and base on my research, the answer would be letter A. carbon. I hope you are satisfied with my answer and feel free to ask for more if you have question and further clarification.