In personal computer hardware, which of the following options correctly names processor product lines from the two major desktop CPU manufacturers Intel and AMD?

Introduction / Context:
Over the years, Intel and AMD have been the two dominant manufacturers of desktop and laptop processors for personal computers. Each company releases its processors under specific family names or product lines. This question checks whether you can recognise realistic combinations of processor lines associated with these two major manufacturers.

Given Data / Assumptions:

- We are asked about processor lines from two major manufacturers.- The manufacturers implied are Intel and AMD, which dominate the consumer CPU market.- The options pair different brand names with different companies, some correctly and some incorrectly.

Concept / Approach:
Intel has marketed many of its mainstream desktop and mobile CPUs under names such as Pentium, Core i3, Core i5, Core i7, and Core i9. AMD has marketed its consumer processors under names such as Athlon, Phenom, and Ryzen. When evaluating the options, the correct choice must pair Intel with families it actually produces and AMD with its own product lines. Any option that mixes brand names with the wrong manufacturer should be rejected.

Step-by-Step Solution:
Step 1: Recall that Intel is known for lines like Pentium and Core, and AMD is known for lines like Athlon and Ryzen.Step 2: Examine option A, which pairs Intel Core or Pentium with AMD Athlon or Ryzen. This matches known product families for both companies.Step 3: Examine option B, which pairs Intel Athlon and AMD Pentium. These names are reversed and therefore incorrect.Step 4: Examine option C, which lists Intel Xeon and Motorola Ryzen. Xeon is a real Intel brand, but Motorola does not produce Ryzen processors, and Ryzen belongs to AMD.Step 5: Examine option D, which mentions IBM Core and AMD Celeron. Core is an Intel brand, not IBM, and Celeron is also an Intel low end processor line, not an AMD brand.Step 6: Examine option E, which associates Athlon with Apple and Phenom with Intel, both of which are incorrect because Athlon and Phenom are AMD brands.Step 7: Conclude that only option A correctly pairs realistic Intel and AMD processor lines with the proper manufacturers.

Verification / Alternative check:
Checking product announcements and manufacturer websites shows Intel listing Pentium and Core series for mainstream users, while AMD lists Athlon and Ryzen series in its consumer desktop and mobile sections. Historical CPU charts and reviews consistently group Pentium and Core under Intel, and Athlon and Ryzen under AMD. This real world evidence confirms that option A reflects actual processor lines and correct manufacturer associations.

Why Other Options Are Wrong:
Option B reverses the manufacturer associations, which is factually incorrect. Option C invents a combination with Motorola Ryzen, even though Ryzen is an AMD brand. Option D misattributes both Core and Celeron to the wrong companies. Option E assigns AMD processor names to companies that do not use them. These choices serve as distractors that test whether you truly recognise which names belong to which manufacturer.

Common Pitfalls:
Some learners may not follow brand history closely and may only recognise a few names, making it easy to be confused by options that sound familiar but are mismatched. A helpful approach is to remember at least one or two flagship series from each company: for Intel, the Core series, and for AMD, the Ryzen series. From there, you can more easily spot incorrect pairings.

Final Answer:
The correct pairing is Intel Core or Pentium series and AMD Athlon or Ryzen series, as given in option A.