Answer:
B, J, O,U, And Y
Step-by-step explanation:
Coded messages are those written using codes. These codes can be numbers, drawings, geographic figures and even letters written in different orders or the omission of some letters. This type of message is designed to prevent anyone other than the intended recipient from viewing it. The concept of encrypted messages is an ancient one, since the Roman emperor Julius Caesar would have used a simple form of encryption to send messages to his generals.
When these messages use letters, it is common for the letters B, J, O, U and Y not to appear.