Which word from the paragraph helps the reader understand the meaning of the underlined word?

A mother robin was chirping frantically outside the window. We found the cause at the base of the tree. The *juvenile* robin had survived the perilous fall by landing on a cushy pile of leaves. The fluffy young thing opened its beak wide as we picked it up and returned it to its comfy nest.

A.
comfy

B.
perilous

C.
young

D.
fluffy

juvenile is the underlined word