what is the output of bellow code var posval 44 negval..., Regular Expression, Javascript

Question:what is the output of bellow code?var posVal= 44;
var negVal= -posVal;
var diffVal= (posVal-negVal);
document.write(diffVal);

A 44 
B 88 
C -44 
D 0

+ AnswerB

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Question:what is the output of bellow code?var posVal= 44; var negVal= -posVal; var diffVal= (posVal-negVal); document.write(diffVal);