What is a common use of the present perfect tense?

The present perfect tense is commonly used to describe actions that occurred at an unspecified time in the past. This tense emphasizes the relevance or consequences of a past action in the present, rather than the specific time when the action took place. For example, saying "I have visited Paris" suggests that the experience of visiting Paris has significance to the speaker's current life and may affect their present circumstances or views, even though the exact time of that visit is not mentioned.

In contrast, using this tense for actions at a specific time or for future intentions, as seen in the other choices, does not align with its primary function. The present perfect is not suited for specifying when something happened in the past, since that would typically use the simple past tense. Similarly, it is not utilized for expressing future plans or intentions, as present perfect does not denote future actions. Lastly, comparisons between past events would typically rely on other tenses and structures that clarify the times and contexts of those events, further distinguishing them from the use of the present perfect.