Why Do House and Local Candidates Tend Not to Focus

Why do House and local candidates tend not to focus their campaign resources on television ads?

A) A district may represent only a small portion of a station's market.
B) Polls indicate that voters are alienated by television ads.
C) Television stations do not reach a large enough audience.
D) The government does not reimburse them for such ads as it does for presidential candidates.
E) They prefer to go personally door to door.