A Company's Daily Real-Time Online Transaction Data Is About 500G

A company's daily real-time online transaction data is about 500G and 30G daily new data, the new data is frequently called within a week after the production. The company employees 80 people, each person's mailbox space is 5G, and the average space utilization rate is 60%.  For a six months demand, A company should configure which of the following?

A) High-performance layer 550G, performance layer 250G; capacity layer 6T
B) High-performance layer 400G, performance layer 250G; capacity layer 7T
C) High-performance layer 800G, performance layer 400G; capacity layer 6T
D) high-performance layer 600G, performance layer 300G; capacity layer 7T