(1a) I will give you a choice: buy me dinner or cook for me tonight. (my version)
(1b) I will give you two choices: buy me dinner or cook for me tonight. (my non-native English speaking friends' version)
(2a) I will give you a choice for each multiple choice question: true or false. (my version)
(2b) I will give you two choices for each multiple choice question: true or false. (my non-native English speaking friends' version).
I am not sure whose version is correct. Please help me. Thank you very much for your help.
Strictly speaking, a "choice" is a decision, or act of making a decision, so "a choice" is correct in your sentences. However, in practice people may loosely use "choice" to mean something that can be chosen, so you might hear some people say "two choices".
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Strictly speaking, a "choice" is a decision, or act of making a decision, so "a choice" is correct in your sentences. However, in practice people may loosely use "choice" to mean something that can be chosen, so you might hear some people say "two choices".