In order to set a multiple plot matrix

$1$ point

for $3$ plots in each $2$ rows $($i$.$e$.,32=6$ plot placeholders$),$ the screen should be initiated as: $($Choose the correct answer from the options below$).$

$)=c(1,6),$

oma$=c(5,0,0,0),xpd=(NA)=c(3,0),$

oma$=c(5,0,0,0),xpd=(NA)=c(3,2),$

oma$=c(5,0,0,0),xpd=(NA)=c(2,3),$

oma$=c(5,0,0,0),xpd=(NA$