The two types of metabolic reactions are anabolic and
a. Mesobotic
b. Catabolic
C. Photobolic
d. Lesobolic

B option is correct answer.

Explanation:

As  we know that there are 2 types of metabolic reactions  in which one is anabolic mean 'building up" as in your question anabolic is mentioned but the second type you ask and the answer of your question is the catabolic means" "breaking down"

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.