1 How some pizza?

The correct word to complete the sentence is 'much' since pizza is uncountable. However, 'much' is not an option. Among the given options, 'about' is the most grammatically plausible if the question were "How about some pizza?" implying an offer or suggestion. Since 'much' is the correct quantifier for uncountable nouns, and it's not available, and 'How about' is a common phrase for suggesting something, 'about' is the best fit among the choices, assuming a slightly different intended phrasing.

Ответ: C about