The correct option is A Anxious
Option
A is the correct answer because ‘anxious’ means ‘worried’. The mother was quite
worried for her children and brought them up with lots of efforts. Thus, ‘anxious’
is the most appropriate adjective.
Option B is incorrect because ‘anxiety’ is a noun. Thus, it is not the
appropriate grammatical word for the given sentence.
Option C is incorrect because ‘anxiously’ is an adverb. Thus, it is not the
appropriate grammatical word for the given sentence.
Option D is incorrect because ‘anxiousness’ is a noun; however, it does not fit grammatically in the given sentence.