4[单选题]
<p style="FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: 'Times New Roman'"><span>She offered a reward to<u><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></u><span>&nbsp;</span>would find her lost mobile phone.</span></p>

A.whoever

B.who

C.whomever

D.whom