What did the speaker intend to do but did not accomplish last night?

The intent to call Mike indicates a planned action that the speaker failed to complete last night. This choice focuses on the action of making a phone call, which is often associated with communication or social connection. If the speaker had shared a reason or context, it could have highlighted why that specific intention was significant to them, such as discussing something important or catching up.

The other options, while possible intentions, do not align with the implication that the speaker specifically had a plan related to Mike. Meeting friends, watching a movie, or finishing homework could all involve different contexts or priorities, but the question emphasizes the specific failure to connect with Mike, underscoring a missed opportunity for direct communication.