Asymbol that represents a speech sound and is a unit of an alphabet k

That is still k. The speech sound k is in the alphabet written as k /kei/, but in phonetic alphabet according to the IPA it is still k. Spelling a letter based on alphabet and writing it in international phonetic alphabet is often different, but for k it is the same.

honestly i had the same thing i put (dont know if correct dont at me  if im wrong) part A is B and Part B is  B,F PROBABLY WRONG SINCE im not smart OK

Explanation: