Mohan tells his friends, Sohan (sohan@gmail.com), Rohan (rohan@yahoo.com) and John (john@gmail.com), date of his birthday party through an email as shown below:
To : sohan@gmail.com
Cc : rohan@yahoo.com
Bcc : john@gmail.com
Subjects : My birthday party is on 15/01/2019
Hello all,
Call me if you can come.
Mohan
Which of the following cannot be derived from this email?
1
Sohan knows that Rohan receives the email.
2
Rohan knows that John receives the email.
3
John knows that both Sohan and Rohan receive the email.
4
Sohan knows that the birthday party will be held on 15/01/2019.