The full sentence would be:
It is like something my mother wore thirty years ago.
The correct contraction of <em>it is </em>is <em>it's.</em>
The answer is B. It's like something my mother wore thirty years ago.
Since 'next' is a time-order word, you need another.
'Then' is a time-order word. You are not stating a 'fact', nothing happened abruptly, or 'suddenly', and you aren't comparing anything, 'similarly'.
Repetition is used to emphasize a feeling or idea, create rhythm, and/or develop a sense of urgency.
