Which statement indicates confidence in one’s ability to achieve success?

The statement that indicates confidence in one’s ability to achieve success is the one that positively asserts an individual's self-belief in their skills and potential. By saying, "I am confident in my ability to be successful," the individual conveys a strong self-assurance and a positive outlook on their chances of success. This affirmation reflects a mindset focused on capability and determination, which is essential for achieving goals.

In contrast, the other statements reflect a lack of confidence or uncertainty about one’s abilities. Expressing doubt or disbelief undermines the assertion of confidence and does not contribute to a positive self-image, which is essential in pursuing success. Statements that indicate uncertainty or low self-esteem can hinder motivation and performance, whereas a confident mindset fosters resilience and a proactive attitude toward challenges.