"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.
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.
The correct answer is: includes run-on independent clauses.
The statement "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" is an example of run-on independent clauses. This means that there are two independent clauses, "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," combined without proper punctuation.