An informal letter is a letter that is written in a personal manner. You can write them to relatives or friends, but also to anyone with whom you have a friendly connection. You may also write it to business partners or workers with whom you have a cordial and friendly relation.

The question is incomplete but I will do my best to guide you in writing an informal letter.

Explanation:

An informal letter is the type of letter that is written to a friend, colleague or family member. It is written in a friendly tone since the writer and the receiver are well acquainted with each other.

An informal letter begins with an address. This is usually the address of the writer. This is now followed by the date on which the letter was written. Next comes the greeting. It is usually a friendly salutation such as; Dear Jude, Dear Anthony etc.

The introductory paragraph usually carries the greeting and pleasantries of the writer. Sometimes, the writer even makes reference to a previous correspondence between the duo.

The body of the letter contains paragraphs in which the writer expresses the reason for writing the letter. This is where the message is passed from writer to recipient.

The closing of the letter is usually some kind of friendly remark such as; Yours sincerely, Yours truly, Yours affectionately etc. This is followed by the name by which the recipient knows the writer.

umm we do not your answer or what you are talking about

i would think its c but i'm not sure