Final answer:
The molecule in the bond-line drawing contains eight carbon atoms and to satisfy each carbon atom's valency, there must be 16 hydrogen atoms in the compound.
Step-by-step explanation:
The question is asking about the number of hydrogen atoms in a molecule based on its bond-line drawing. In bond-line drawings, the vertices and ends of lines represent carbon atoms. Each carbon atom can make a total of four bonds. Hydrogen atoms are added to each carbon to satisfy the four bonds rule, but are typically not shown in bond-line drawings for simplicity.
In this compound with eight carbon atoms, we must infer the presence of hydrogen atoms to meet the valency of carbon. The molecule has a molecular formula of C8H16. Therefore, the correct answer is that the compound contains 16 hydrogen atoms.