We can find two individuals who cannot be reached by anyone in

The last row

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The fourth row

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The fourth column

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The middle column

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Solution

The correct option is C
The fourth column

The heights 1 and 2 represented by $R_{4} C_{4}$ and $R_{2} C_{4}$ can't be reached by anyone.
Hence, fourth column is the answer.

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⎡ ⎢ ⎢ ⎢ ⎣ \begin{matrix} 3 & 4 & 2 & 11 9 & 1 & 0 & 0 0 & 1 & 0 & 2 0 & 0 & 6 & 1 \end{matrix} ⎤ ⎥ ⎥ ⎥ ⎦

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We can find two individuals who cannot be reached by anyone in

The correct option is C The fourth column The heights 1 and 2 represented by R4C4 and R2C4 can't be reached by anyone. Hence, fourth column is the answer.

The correct option is C
The fourth column

The heights 1 and 2 represented by $R_{4} C_{4}$ and $R_{2} C_{4}$ can't be reached by anyone.
Hence, fourth column is the answer.