A. 2.5 – 3.5
B. 3.5 – 4.5
C. 5.5 – 6.5
D. 6.5 – 7.5

Correct Answer: Option C

Explanation

Oil Palm (Elaeis guinensis) requires a pH scale of 5.5 to 6.5 i.e. it requires a pH scale which is acidic. Therefore, 5.5 – 6.5.

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