Study the following paragraphs. Then write an appropriate subject line and opening sentence for each one.

I am pleased to receive your inquiry of March 2 regarding the possibility of my acting as a speaker at the final semester meeting of your business management club on June 1. The topic of networking and résumés in the digital age interests me and is one on which I think I could impart helpful information to your members. Therefore, I am responding in the affirmative to your kind invitation.