The Golden Rules of Contour Lines include the following: contour lines never cross, the closer the contour lines, the steeper the slope, and tops of hills and mountains are marked with closed circles.

The statement describes standard contour-line rules: contour lines generally do not cross, closely spaced lines indicate a steep slope, and closed contour lines can mark a hill or mountain top. Therefore, the statement is true, matching choice A, “T.”

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