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Assume X, Y, Z, W and P are matrices ...

Assume X, Y, Z, W and P are matrices of order `2 xxn` , `3 xxk` , `2 xxp` , `n xx3` and `p xxk` , respectively. Choose the correct answer The restriction on n, k and p so that `P Y" "+" "W Y` will be defined are: (A) `k" "=" "3," "p" "=" "n` (B)

A

`k=3,p=n`

B

k is arbitrary `p=2`

C

p is arbitrary

D

`k=2,p-3`.

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A
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