(32 point) Question 3 Consider the B+ tree index of order d = 2 shown below. Root 50 73 85 8 1832 40 1*2*56*8 10 18 27 32 39* 41 45* 73 80* 91 99* a) How many pages should be read to answer this query: "get all records with search key greater than 32 and less than 42