Translation of Note:
'Mr. Kimura, regarding tomorrow's party, I will arrive a bit late. It will be 6:30 PM. I will buy and bring the souvenir cake, so please wait for me. - Tanaka'
Explanation of Answer:
- The question asks: 'What time will Tanaka-san go to the party?'
- In the note, Tanaka states: '午後 ６時半に なります' (It will be 6:30 PM).
- Therefore, Choice 3 (午後 ６時半) is the correct answer.