A metaphor makes a comparison by stating that one thing is something else, but a simile states that one thing is like something else.
This is a predicate adjective, as it immediately follows a copulative (=linking) verb "to grow". If it said - The tall grass, then "tall" would be nominative. This way it isn't, it is a predicative adjective.
I think that right annswer for this question is a.
My dear Alex,
You will be glad to know that my brother’s marriage is taking place on 25th Nov. My brother has asked me to invite you.
So you are cordially invited to attend the marriage. You are requested to come two or three days before the marriage to help us in preparations.
Please convey my best regards to your parents and love to Youngers.
Yours sincerely,
Sarah
How was your summer? Mine went great, here are some things that I did in the summer.(briefly list