Concept:After verbs like “saw,” we use the bare infinitive (base form of the verb) without “to.”Explanation:The sentence is “I saw the dog … out of the house.”When “saw” is followed by an object and an action, the correct form is the base verb: “run.”So the sentence becomes: “I saw the dog run out of the house.”The other options do not fit this structure correctly.Answer:A. run