<h2>Answer:</h2>
<u>The correct option is</u><u> (B) hang up and call back using the banks official phone number</u>
<h2>Explanation:</h2>
There are a lot of cases where people pretend to call from the banks where the receivers have the account. The caller tries to take the information from the receiver and pretends to be the bank official. If there is any doubt then the receiver should hang up the call and call back the official number of the bank to confirm that whether somebody has called from the bank to get the information.
Answer:
Binary number system
ASCII number system
Explanation:
C++ uses binary number system to define machine level language of the code written in high level languages and ASCII system to define the characters on key board for background low level coding an thus each character on the keyboard has a number associated with it to define it uniquely.
