$3$NF may still have undesirable data redundancy because there may exist in relational database$1.$ Non$-$trivial functional dependencies involving number of attributes$\mathrm{.}2.$ Non$-$trivial functional dependencies involving prime attributes only on the left side$\mathrm{.}3.$ Non$-$trivial functional dependencies involving prime attributes and the right side$\mathrm{.}4.$ Transitive functional dependencies.Note: one space between each number, if answer include more than one option $*$