Which Intel Xeon processor supports up to 18 cores?

A.
E3-1200

B.
E3-1200 v5

C.
E5-1600 v3

D.
E5-4600 v3

Explanation:
The E5-4600 v3 series supports up to 18 cores.
http://ark.intel.com/products/family/78583/Intel-Xeon-Processor-E5-v3-Family#@All