For $3$ input AND logic $($AND$3),$ if and only if $A=1,B=1,C=1,$ the output will be $1.$ Base on that definition, the equation is output $=$ABC, the truth table for AND$3$ is:

ABC Output

$000,0$

$0010$

$010$ type your answer...

$011$ type your answer...

$100$ type your answer...

$101$ type your answer...

$110$ type your answer...

$111$ type your answer...