The correct answer is B. Motorola.
Motorola was the original supplier of processors for the Apple Macintosh, starting with the Motorola 68000 in 1984. Motorola continued to supply processors for the Macintosh until 2006, when Apple switched to Intel processors.
IBM was a supplier of processors for the Apple Macintosh from 1994 to 1997. IBM’s PowerPC processors were used in the Power Macintosh line of computers.
Intel is the current supplier of processors for the Apple Macintosh. Intel’s Core i5, Core i7, and Core i9 processors are used in the current line of MacBooks, iMacs, and Mac Pros.
AMD is a competitor of Intel. AMD processors are not used in any current Apple products.
Cyrix was a company that developed and manufactured x86 microprocessors. Cyrix was acquired by National Semiconductor in 1997, which was then acquired by Intel in 2000.