Q. What will be the output of the following R code?
> f <- function(elt) {
+ elt[, 1]
+ }
> lapply(x, f)

• (A) $a [1] 1 2 $b [1] 1 2 3
• (B) $a [1] 1 2 3 $b [1] 1 2 3
• (C) $a [1] 1 2 3 $b [1] 1 2
• (D) Error