What is a compound sentence? Two independent clauses joined by a comma, a coordinating conjunction, or a semicolon Two independe
nt clauses joined by a semicolon, a conjunctive adverb preceded by a semicolon and followed by a comma, or a coordinating conjunction preceded by a comma Two independent clauses joined by a coordinating conjunction or a semicolon
The central idea is the same as the main idea. Most of the time, the main idea is mentioned in the Title. Without reading the essay, I do not know what the central/main idea is.
C. Kim had to leave the boat, but she could not swim.
Explanation:
The word "irresolvable" means there is no solution, it cannot be solved. In answer C, there is no solution. She has to leave the boat but she can't swim. Hope this helps :)
