As part of the firm's strategy to become recognized as a leader in green computing, the organization wants to begin migrating to more energy efficient computing devices. Which of the following computer hardware procurement strategies is not consistent with migration toward more energy efficient, green computing?

a. Encourage the purchase of computers that employ DDR4 RAM memory.

b. Migrate computer users toward the use of lightweight portable computers and smartphones based on ARM processors or Intel Atom chips.

c. Require that any computer hardware purchased be ranked in at least the silver category of the EPEAT rating system.

d. Encourage the replacement of OLED monitors with plasma monitors.