1. The ferret was named after a famous politician, Ruth Lessindeed, therefore eventually it took to stealing food from our plates.

Ans.

The ferret was named after a famous politician Ruth Lessindeed; therefore eventually, it took to stealing food from our plates.

1) Removal of the commas around "Ruth Lessindeed." This is a restrictive element; therefore, no commas are needed. [Score 2 pts.]

2) Insert semicolon after "Lessindeed." "Therefore" is a conjunctive adverb. [Score 1 pt.]

3) Insert comma after "eventually." Here is an adverb that begins this independent clause. Set it off with a comma. [Score 1 pt.]