5 A busmess letter has six parts instead of five The extra part is called the inside address. It is placed just above the salutation. The other five parts are just the same as for the friendly letter What is the extra part of a business letter? C The salutation C A friendly letter C The inside address C It has six parts instead of five.

## Step 1<br />The problem is asking for the extra part of a business letter. According to the information provided, a business letter has six parts instead of five. The extra part is called the inside address and it is placed just above the salutation.<br />## Step 2<br />The other five parts of a business letter are the same as those of a friendly letter. Therefore, the extra part of a business letter is the inside address.