I think a would be the best answer for the preposition
Answer:
false
Pointing at each other does not make them ill
A group of words that includes a subject and a verb but does not express a complete thought is called subordinate clause, or also referred to as dependent clause. This group of words is not a sentence and can't stand alone as a sentence. Example : Because I can't wait for the bus; Until the sun rises.
Oct 8, 1871 – Oct 10, 1871