The following function will take three inputs: data, and category, two arrays with numerical data and category labels for data, and selectcat, a category of data to return. It returns sift, the data from the selected category.

Which of the following statements about the function below is TRUE?

function $[$sift$]=$ sifter$($data$,$category, selectCat$)$

$L=$ length $($data$)$

sift $=$zeros$(1,L)$

count $=1$

for $i=1$:$L$

if category $($i$)==$ selectCat

sift$($i$)=$ data$($i$)$;

count $=$ count $+1$

end

end

sift $=$ sift $(1$: count$-1)$;

sift should be indexed with count instead of $i$

The line of code for $i=1$:$L$ should read for count $=1$:$L$

The variable count is unnecessary.

data should be indexed with count instead of $i$