Let \( \mathrm{P}, \mathrm{Q}, \mathrm{R} \) and \( \mathrm{S} \) b...

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Let \( \mathrm{P}, \mathrm{Q}, \mathrm{R} \) and \( \mathrm{S} \) be the points on the plane with position
P vectors \( -2 \hat{i}-\hat{j}, 4 \hat{i}, 3 \hat{i}+3 \hat{j} \) and \( -3 \hat{i}+2 \hat{j} \) respectively. The

W quadrilateral PQRS must be a
(a) parallelogram, which is neither a rhombus nor a rectangle
(b) square
(c) rectangle, but not a square
(d) rhombus, but not a square
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