What will be the output of the following R code?
> x <- c(1, 2, NaN, NA, 4)
> is.na(x)
> x <- c(1, 2, NaN, NA, 4)
> is.na(x)
A. FALSE FALSE TRUE TRUE FALSE
B. FALSE TRUE TRUE TRUE FALSE
C. TRUE FALSE TRUE TRUE FALSE
D. TRUE FALSE TRUE FALSE FALSE
Answer: Option A
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