To put abstract ideas into close-up words or a description that is more easily understood. Use D) concrete descriptions. Concrete descriptions seek to make a concept easily understood by the reader or listener.
I believe the answer would be D: a current study on the effects of stress on the body published by a medical journal.
Hope this helps.
B.
<span>Unemployment is high in many fields, but there are jobs available in telecommunications.
A comma is used when it is placed after the end of one independent clause and the beginning of another which follows one such clause. The two independent clauses must be joined with words known as co-ordinating conjunctions. Examples of such words are, but, and,or so etc.
In this sentence but is used, </span>preceded by a comma so it is the right one.
Originates mid 19th century: from Spanish/Mexico , meaning ‘rough, or rude