Which statement reflects taking responsibility?

The statement "I haven't found it yet. I need to look harder." reflects taking responsibility because it conveys an initiative to actively seek a solution rather than placing blame or relying on others. This indicates a willingness to engage with the problem and exert effort in resolving it, which is a key aspect of being responsible.

In contrast, the other statements show a lack of proactivity. Asking for help may be appropriate in certain situations, but it does not inherently demonstrate taking responsibility for solving the issue at hand. Expressing hope that someone else will find the solution or deeming the problem too difficult suggests a passive attitude and an unwillingness to address the challenge directly. Responsible behavior involves recognizing one’s own role in finding solutions and taking the necessary steps to overcome obstacles.