Question

Which contains an error in logic as worded?
A forgotten backpack was Mark's usual reason for not turning in his homework.
Mark's usual reason for not turning in his homework was that he forgot his backpack.
Mark's usual reason for not turning in his homework was forgetting his backpack.
Mark's usual reason for not turning in his homework was because he forgot his backpack.

Answer 1

Mark's usual reason for not turning in his homework was because he forgot his backpack.

Answer 2

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