The sailboat with yellow stripes on its sails drifted accross the lake.

Which of the following is the subject of the sentance?
A. sailboat
B. sails
C. stripes
D. lake

A. sailboat

The subject of the sentence is A. sailboat.

The subject of a sentence is typically the noun or pronoun that performs the action or is described by the verb. In this sentence, the subject is the noun that performs the action of "drifted."

To determine the subject of the sentence, you can ask yourself: "Who or what drifted across the lake?" In this case, the answer is "sailboat." Therefore, the subject of the sentence is "sailboat."

So, the correct answer is A. sailboat.