A, critical thinker it is the most logical answer in this situation
Carbohydrates provide<span> your </span>body<span> with energy.
</span>
Serves, clears, smashes, drives and drops
Twice as old as" means we will be multiplying by 2. "her cousin" - we need a new variable C to represent her cousin's age. "was three years ago" - 3 years ago means we will have to subtract 3.