Should I say ‘accepted’ or ‘welcomed,’ ‘visible’ or ‘readable’ in the given sentences?

Should I say ‘accepted’ or ‘welcomed,’ ‘visible’ or ‘readable’ in the given sentences?

1. Professor Williams (accepted, welcomed) students’ answers with a sense of humor, which is necessary to break the monotony of the discussion.

2. She used visual aids with (visible, readable) content.