Choose the most appropriate information from the options given below when you have to write a formal letter to a company.

When you are writing a formal letter to a company, what information do you include ____.

Both your address and the company's address

The correct answer is Option (3) → Both your address and the company's address

The most appropriate information to include when writing a formal letter to a company is your address and the company's address. This information is essential for the company to be able to contact you and respond to your letter.

• Your date of birth is not typically relevant to the purpose of a formal letter to a company.