Which of the following is a common protocol used to send email?

Should data in a table be as simple as possible or very complex? Explain

What will be an ideal response?

Which of the following statements best applies to the term user-defined events?

(A) User-defined events represent specific instances of a user-defined type. (B) User-defined events are used to communicate changes of properties, errors, and the progress of lengthy operations. (C) User-defined events are predefined objects with physical manifestations. (D) User-defined events are populated with objects that hold data, have properties, respond to methods, and raise events.