Final answer:
The run-on sentences among the provided options are numbers 1 and 3, which lack proper punctuation or conjunctions to correctly join independent clauses. Option b
Step-by-step explanation:
The run-on sentences from the provided options are 1 and 3. Option 1 has two independent clauses joined without proper punctuation or conjunction: "Plastic surgery costs are decreasing, the amount of people having it are increasing."
This sentence requires a conjunction such as 'and' after the comma, or the comma should be replaced with a semicolon. Option 3 has two independent clauses joined without any punctuation: "Bruce Campbell is one of my favorite actors his best film is Evil Dead." It should have a period or a semi-colon separating the two clauses. Therefore, the correct answer is b) 2 and 3.