Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to thank a professor [title] Approach them after class or during office hours. [step] Talk to your professor after class or meet them at office hours. Meeting in person can allow you some time to talk to the professor outside of just saying thank you if you wish.

Ending1: Make sure you catch up on an initial conversation over lunch in their office. [substeps] Remember, just because your professor is busy during office hours does not mean you can't at least casually talk to them. Ending2: This will be especially important if you've only seen them for a few hours, as professors are busy because of work. [substeps] Greet them at exit time to show your appreciation. Ending3: [substeps] Note that hand-written notes are a healthier option if you want to be polite. [title] Thank them at the end of class or mid-afternoon. Ending4: It can also help the professor pair your name and face together. [substeps] If you want to create or maintain a professional relationship with your professor, you may want to thank them in person so that they get to know you better.

Answer format: ending1/ending2/ending3/ending4