Avariable must have its type declared but it is not required to be initialized prior to first use.
a) true
b) false

The correct answer for the given question is option(A).

Explanation:

variable are the storage area which value is change during the execution of program

to declared any variable we use the following syntax

datatype variablename ;

for example

int a1;// declared variable a1 of type integer

a1=90; // initialized variable a1

To declared any variable it does not mendatory  to intialized that vaiable at that time but when we using any variable it mendatory  to intialized that variable.

answer; i believe the correct answer is (b) by using a multimeter;