For the problem data set below, what is the northwest$-$corner allocation to the cell Source $1-$ Destination $1?$

$\backslash$table$[[,$Dest. $1,$Dest. $2,$Dest. $3,$SUPPLY$],[$Source $1,6,5,7,95],[$Source $2,5,4,5,55],[$Source $3,6,7,5,50],[$DEMAND$,60,70,70,2001200]]$

A$.0$

B$.200$

C$.55$

D$.95$

E$.60$