Answer:Jargon
Explanation: Jargons are refereed to a special language(mostly professional) used and understood by a particular group of people to communicate effectively some specific contexts within them which people outside the group may not be able to understand. There are different types of jargons which are political jargons, Workplace jargons, Millitary jargons,Medical jargons, Buisness jargons etc
Jargons should not be confused with slangs which is also particular to a group but merely an informal spoken language chosen instead of the standard language of a particular word or words and are most times funny expressions.
The second choice is the answer
Answer: C) subordinating conjunction.
Explanation: a subordinating conjunction is a word that joins a dependent or subordinate clause (a phrase that doesn't have complete meaning on its own) with an independent clause (it has complete meaning on its own). There are subordinating conjunctions that show a relationship between two clauses involving a transition of time or place. In this case, "after" is a subordinating conjunction joining the independent clause "Mrs. Jenkins thanked them gratefully" and the subordinate clause "After the police came to her rescue."