\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
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Which of the following matrices is a row matrix?
\(\mathbf{A}=\begin{pmatrix} 5 \\ 10 \\ 15 \end{pmatrix}\)
\(\mathbf{B}=\begin{pmatrix} 5 & 10 \\ 15 & 20 \end{pmatrix}\)
\(\mathbf{C}=\begin{pmatrix} 5 & 10 & 15 \\ 20 & 25 & 30 \end{pmatrix}\)
\(\mathbf{D}=\begin{pmatrix} 5 & 10 & 15 \end{pmatrix}\)
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