You Are Using an E-Mail Client That You Are Unfamiliar

Multiple Choice

You are using an e-mail client that you are unfamiliar with. You need to send an e-mail with an attachment but you do not see a feature labeled "attachment" anywhere on the client. What icon should you look for that is commonly used to invoke the e-mail attachment option?

A) Lock
B) Folder
C) Checkmark
D) Paperclip