If n $($the number of items in the Bloom filter$)$ and m $($the number of bits in the Bloom filter$)$ are fixed, which of the following is true?

If n $($the number of items in the Bloom filter$)$ and m $($the number of bits in the Bloom filter$)$ are fixed, which of the following is true?

k should be $3$

k should be set so that approximately m$/2$ bits are set

k will have no impact on the false positive rate

k should be set to $2$n

Question at position $3$

$3$