She __________ her success to hard work and dedication.

The correct answer is attributes. To attribute something to someone or something means to regard it as being caused by or resulting from that person or thing. In this sentence, the speaker is identifying hard work and dedication as the causes or sources of her success. This usage correctly conveys the idea of assigning credit or cause. Let's look at the other options: Contributes means to give something, especially money or time, to help achieve or provide something. While hard work contributes to success, the phrasing "she contributes her success to" is grammatically awkward and does not accurately express the causal link intended here. Distributes means to give out shares of something or deal out, which is unrelated to the context of assigning cause for success. Owes means to have an obligation to pay or repay something. While one might say "she owes her success to her mentor," using it with abstract concepts like "hard work" in this structure is less precise and less common than "attributes."