Question $3$

$1$ point possible $($graded$)$

Our function not$\_$inches$()$ returns the object ind.

Which answer correctly describes ind?

ind is a logical vector of TRUE and FALSE, equal in length to the vector x $($in the arguments list$).$ TRUE indicates that a height entry is incorrectly formatted.

ind is a logical vector of TRUE and FALSE, equal in length to the vector x $($in the arguments list$).$ TRUE indicates that a height entry is correctly formatted.

ind is a data frame like our reported$\_$heights table but with an extra column of TRUE or FALSE. TRUE indicates that a height entry is incorrectly formatted.

ind is a numeric vector equal to reported$\_$heights$heights but with incorrectly formatted heights replaced with NAs.