MATCHING MATCH a Structure or Term from the Following List with with Each

MATCHING
MATCH a structure or term from the following list with each description below. Place the letter of the structure or term in the blank to the left of the description.
-______ Groups which activate aromatic rings towards electrophilic substitution.

A) benzyne
B) "⁺NO₂"
C) R₃C⁺
D) electron-donating
E) "⁺NO"
F) Meisenheimer complex
G)
H) electron-withdrawing