Discussion

Explanation:

The first term in both cases (HNP and DLP) form approximate right triangles in anti-clockwise directions. Hence, their shape is the same.
Considering the shape that PDA forms, the only options that follow this shape are PJG or PHE.
However, observe in the first pair that in HNP and PDA; D is the second vertex on the pentagon after H, going anti-clockwise.
Consider DLP. The second vertex on the pentagon after D, going anti-clockwise, is J.
Hence, the term should be PJ_. Only PJG satisfies this condition.
Hence, option (b).

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