When We Notice That an American English Speaker Puffs Air

When we notice that an American English speaker puffs air when they say "pit", but not when they say "spit", and that this pattern holds true across a variety of utterances and for a variety of speakers, we can conclude that

A) [p] and [pʰ] are allophones of /p/.
B) /p/ and /pʰ/ are allophones of [p].
C) /p/ and /pʰ/ are phonemes in English.
D) the mechanics of producing a bilabial plosive at the beginning of a word require you to puff air, no matter what language you may be speaking.