Let p, q and r be three distinct positive real numbers. If \(\rm D = \left| {\begin{array}{*{20}{c}} \rm p&\rm q&\rm r\\ \rm q&\rm r&\rm p\\ \rm r&\rm p&\rm q \end{array}} \right|,\) then which one of the following is correct?

Let p, q and r be three distinct positive real numbers. If \(\rm D =

1.	Let p, q and r be three distinct positive real numbers. If \(\rm D = \left\| {\begin{array}{*{20}{c}} \rm p&\rm q&\rm r\\ \rm q&\rm r&\rm p\\ \rm r&\rm p&\rm q \end{array}} \right\|,\) then which one of the following is correct?
A.	D < 0
B.	D ≤ 0
C.	D > 0
D.	D ≥ 0
Answer» C. D > 0

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Let p, q and r be three distinct positive real numbers. If \(\rm D = \left| {\begin{array}{*{20}{c}} \rm p&\rm q&\rm r\\ \rm q&\rm r&\rm p\\ \rm r&\rm p&\rm q \end{array}} \right|,\) then which one of the following is correct?

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