A
Only two
B
Only three
C
Only four
D
All the five
Correct answer: (b) Only three
Explanation
- A
Only two
Only two. Three of the listed countries are keyed.
- B
Only three
Only three. Three names in the list sit in the grouping the question asks (the official count).
- C
Only four
Only four. Over-counts.
- D
All the five
All five. Over-counts.
Summary. Official Set A key is (b) only three. Count only the countries that actually belong to the set in the stem (the printed I–V list). Three names qualify; two do not. Not two, not four, not five.
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