Select one or more:O a$.$If A $=9,$ B $=8$ and C $=4,$ then T is a binary search treeO b$.$ If A $=8,$ B $=9$ and C $=4,$ then T is a Max$-$heapO c$.$ If A $=9,$ B $=8$ and C $=4,$ then T is a Max$-$heap$0$ d$.$If A $=9,$ B $=8$ and C $=4,$ then T is a Min$-$Max heap