Final answer:
The compound C6H12O6 contains three different elements: carbon, hydrogen, and oxygen; therefore, the answer is A) 3.
Step-by-step explanation:
The compound in question is C6H12O6, which is the chemical formula for glucose. This formula indicates the molecule is made up of carbon (C), hydrogen (H), and oxygen (O) atoms. To determine the number of different elements in this compound, you simply count the types of elements listed in the formula. Here, we can see three distinct elements: C, H, and O.
So, the correct answer to the question "How many different elements are in the compound C6H12O6?" is A) 3.