Which subnet summarizes and gives the most efficient distribution of IP addresses for the router configuration?

A corporate office uses four floors in a building.
Floor 1 has 24 users.
Floor 2 has 29 users.
Floor 3 has 28 users.
Floor 4 has 22 users.
Which subnet summarizes and gives the most efficient distribution of IP addresses for the router configuration?
A. 192.168.0.0/24 as summary and 192.168.0.0/28 for each floor
B. 192.168.0.0/23 as summary and 192.168.0.0/25 for each floor
C. 192.168.0.0/25 as summary and 192.168.0.0/27 for each floor
D. 192.168.0.0/26 as summary and 192.168.0.0/29 for each floor

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