Paralegal Rob prepares a letter to a witness indicating the date, time, and location of the court in which the witness is required to appear to testify and encloses a subpoena. Paralegal Rob has prepared which of the following types of legal letters?

A) A demand letter
B) An opinion letter
C) A confirmation letter
D) An informative letter

The letter prepared by Paralegal Rob is an informative letter because it provides specific information about the date, time, and location of the court appearance, along with enclosing a subpoena for the witness. This type of letter is designed to inform the recipient about certain details or actions, rather than demanding action, offering legal opinions, or confirming an agreement or understanding.