Match the run-on sentence solution to the correct run-on sentence

Question

problem: Two main clauses with no punctuation between them
Solutions:
a. Insert a comma before the coordinating conjunction to
separate the two main clauses.
b. Separate the main clauses with an end mark of punctuation,
such as a period or a question mark, and begin the second
sentence with a capital letter, or separate the main clauses
with a semicolon, or insert a comma and a coordinating
conjunction between the main clauses.
c. Replace the comma with an end mark of punctuation such as a
period or question mark, and begin the new sentence with a
capital letter, or place a semicolon between the two main
clauses, or insert a coordinating conjunction after the comma.

Answer 1

Problem: Two main clauses with no punctuation between them

Solution: b. Separate the main clauses with an end mark of punctuation, such as a period or a question mark, and begin the second sentence with a capital letter, or separate the main clauses with a semicolon, or insert a comma and a coordinating conjunction between the main clauses.