Answer :
more careful (B) than today (because it compares with today and tomorrow .)
hope it helps :)
hope it helps :)
So,
Normally, this type of sentence means that (subject) already was careful, and that she has to be more careful.
She can't be most careful, because that is impossible.
Therefore, option B is the correct answer.
Frances must be more careful than she was today.
Normally, this type of sentence means that (subject) already was careful, and that she has to be more careful.
She can't be most careful, because that is impossible.
Therefore, option B is the correct answer.
Frances must be more careful than she was today.