若A为3×4矩阵，B为2×5矩阵，且乘积AC'B'有意义，则C为（    ）矩阵.

<span style、"font-family: 'times new roman', times, serif;" lang="EN-US">2×4</span>

<span style、"font-family: 'times new roman', times, serif;" lang="EN-US">4×5  </span>

<span style、"font-family: 'times new roman', times, serif;"> 4×2 </span>

<span style、"font-family: 'times new roman', times, serif;"> 5×4 </span>