$1)$ Carry out principal component analysis using "NCI$60"$ data from "ISLR" package. Run following lines to get started:

library $($ISLR$)$

labs $<-$ NCI$60$$labs

d $<-$ NCI$60$$data

dim$($d$)$

table$($labs$)$

$2)$ Create a meaningful biplot.

$3)$ Explain biplot in detail