Question $6$

Consider a C$++$ program, in which a particular function is defined as double distance$\_$funct$($float& A$,$ float& B$)$; $.$ This function

calculates the one$-$dimensional Euclidean distance of point A and $B,$ then returns the result. Say the function is called in the

main$()$

part of the program as follows: $A=$ distance funct $(A,B+3\mathrm{.}0f)$; $,$ then you print the output of A and $B.$

What might be the output of A and $B,$ given float $A=3\mathrm{.}0f,B=7\mathrm{.}0f$; $?$

$A=7,B=7$

$A=7,B=10$

None of the outputs are correct.

$A=4,B=7$

Apparently this answer is wrong. Can you explain why it us wrong. Is it because this will result in a compiler error?