Consider the simplified logic below for crediting money to a bank account. Receive money and account number to be credited IF account number is valid…

To determine the minimum quantity of test cases that will give 100% statement coverage, we need

to ensure that each executable statement in the code is executed at least once. Let's analyze the code

step by step to identify the necessary paths:

Valid account number and active account:

Crediting money to the account.

Old balance = zero (overdraft cleared).

VIP customer: message sent by email.

Valid account number and active account:

Crediting money to the account.

Old balance < zero, new balance < zero (account overdrawn).

Non-VIP customer.

Valid account number and active account:

Crediting money to the account.

Old balance >= zero.

VIP customer: message sent by email.

Valid account number but inactive account:

Set message "A/c inactive".

Send message by email to supervisor.

Invalid account number:

Add to the count of invalid inputs.

Considering these scenarios, we can see that the minimum number of test cases to cover all

statements is three:

Path with a valid, active account, old balance = zero, and VIP customer.

Path with a valid, active account, old balance >= zero, and non-VIP customer.

Path with an inactive account or invalid account number.

Therefore, the correct answer is D. 3.