"Martha, Gates, and Zuggy lifted the piano onto the bed of the truck and Kate tied the legs to the frame with ropes and grounding cable and I watched from the sofa." This statement:

includes an inappropriate combination of modifier and noun.

includes a subject and predicate that don't agree.

*** includes run-on independent clauses.

includes a pronoun with no appropriate antecedent.

is a sentence fragment.

2 answers

I wouldn't call them run-ons because of the presence of conjunctions (the two "and" 's).

But none of the other answer choices fit, so I guess it's OK to call it a run-on. Actual run-ons would omit the conjunctions.
That's what I thought, too.