Need help with these questions, I'll leave a

Given the following ERD, please answor which entify sot is a weak entity sot, and which entity set is a strong entity set. A. both are strong entity sets 8, both are weak entity sets C. A is a strong entify set and B is a weak entity set D. A is a weak entity set and B is a strong entity set Suppose we'e accessing 8-byte records in a DRAM with 64 -byte cache line sizes (one cache line is the smallest unit of one CPU cache read from the memory). If we perform sequentiat road, how many IIOs do wo need to perform to read 16 records? A. 1 B. 2 C. 4 D. 8