The answer is the last one (d): LGA1151 version 2.
Explanation for each option:
a. LGA1151 version 1: This socket was used for earlier Intel processors, such as those from the Skylake and Kaby Lake families. Coffee Lake processors require a different version of the LGA1151 socket.
b. LGA2011: This socket is used for Intel's high-end desktop and server processors, such as those in the Sandy Bridge-E, Ivy Bridge-E, and Haswell-E families. It is not compatible with Coffee Lake processors.
c. LGA1150: This socket was used for Intel's Haswell and Broadwell processors. It is not compatible with Coffee Lake processors.
d. LGA1151 version 2: This is the correct socket for Coffee Lake processors. It is an updated version of the LGA1151 socket, designed to support the power and performance requirements of Coffee Lake CPUs.
In summary, Coffee Lake processors use the LGA1151 version 2 socket.