Which of the Following Should Be Undertaken While Creating Subject

Multiple Choice

Which of the following should be undertaken while creating subject lines which will help an e-mail be read?

A) Make the subject line ambiguous and general to cater to a large audience
B) Highlight the subject line if information is neutral or negative
C) Use generic tags such as "hello" or "thank you" to give the message a friendly note
D) Name drop in the subject line to make an appropriate connection
E) Ensure the reader does not recognize the sender to eliminate possible bias