(D) The distance formula between two points $(x_1, y_1)$ and $(x_2, y_2)$ is given by $d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$.Given points are $P(2

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(D) The distance formula between two points $(x_1, y_1)$ and $(x_2, y_2)$ is given by $d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$.Given points are $P(2, -3)$ and $Q(7, 9)$.Substituting the values into the formula:$PQ = \sqrt{(7 - 2)^2 + (9 - (-3))^2}$$PQ = \sqrt{(5)^2 + (12)^2}$$PQ = \sqrt{25 + 144}$$PQ = \sqrt{169}$$PQ = 13$ units.