This says the correct answer is "The girl looks to the butterfly." This is possible in English but is a strange way of saying this. We often say someone looks to [someone/something else] as an idiomatic way of saying that they, e.g. turn to them for advice, or seek them out for help. In other words, it's often used in a more metaphorical sense than a literal way of saying that they are visually looking at the target. "The girl looks at the butterfly" should be the primary answer indicated as correct.