Question $8($Mandatory$)(10$ points$)$Which of the following is equal to the value of a call option? PV$($prob$($S z K$)($E$[$ S $|$ S $$ K$]+$ K$))$O S N$($dy$)-$ K e T$-$t $.$ N$($d$2)$O er$-$t $.$ N$($d$2)($S e $-$r $-$ t $.($N$($d$1)/$ N$($d$2))-$ K$)$All of the above are equal to the value of a call option