What is the maximum amount of memory that is supported …

What is the maximum amount of memory that is supported in a dual-processor Mac Pro (Mid 2012)?

A.
64 GB

B.
32GB

C.
16 GB

D.
8 GB

Explanation:
Explanation/Reference:www.gratisexam.com
https://support.apple.com/kb/SP652?locale=en_US