'Either - Or' is used in the English sentence which refers to a choice between any two options. They are used to determine one or the other of the alternatives.
Either - Or is used to affirm each of the two alternatives.
In the context, it is given that :
We can take one of the two item, that is ----
1. shirt
2. sweater
We affirm to choose only one item from the two.
So, the answer is " B. Either-----------or "
" You can take <u>either</u> the shirt <u>or</u> the sweater."
