Consider the structure $3$ and the statements $($i$)($v$)$ below.

This structure can give rise to:

$($i$)$ four diastereoisomeric relationships between all the possible stereoisomers.

$($ii$)$ three diastereoisomeric relationships between all the possible stereoisomers.

$($iii$)$ two diastereoisomeric relationships between all the possible stereoisomers.

$($iv$)$ two pairs of enantiomers from all the possible stereoisomers.

$($v$)$ one pair of enantiomers from all the possible stereoisomers.