Why Do $\pi$ Bonds Confer Reactivity on a Particular Molecule?
A) Because

Why do $\pi$ bonds confer reactivity on a particular molecule?

A) Because $\pi$ bonds are difficult to break in chemical reactions.
B) Because $\pi$ bonds make a molecule an acid.
C) Because $\pi$ bonds are easily broken in chemical reactions.
D) Because $\pi$ bonds make a molecule an electrophile.