Simplifycan u plz me on this its a math question ! theres an image !

The correct answer is:  [A]:  "  " .
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Explanation:
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We are asked to simplify:

                  →       

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Note the following property of exponents:
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  =   ;  { b 0 } . 

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As such:

→    ;

                 
 = = =  .

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The answer is:  " "  ; 

→  which is:  "Answer choice:  [A]:  "  " . 
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Hope this answer—and explanation—is of some help to you.
  Please comment below or otherwise respond to me if you have any questions or if I can be of further assistance.
     Best wishes!