Consider the Following Java Variable Names

Multiple Choice

Consider the following Java variable names:
I.1stInstance
II.basicInt%
III.empName_
IV.addressLine1
V.DISCOUNT
Which of the following options is correct?

A) Only IV is a valid Java variable name.
B) Only I and IV are valid Java variable names.
C) Only I, IV, and V are valid Java variable names.
D) Only III, IV, and V are valid Java variable names.