$\begin{aligned}1 ^ { 2 } & = 1 \cdot 1 \\1 ^ { 2 } + 1 ^ { 2 } & = 1 \cdot 2 \\1 ^ { 2 } + 1 ^ { 2 } + 2 ^ { 2 } & = 2 \cdot 3\end{aligned}$

$\begin{aligned}1 ^ { 2 } & = 1 \cdot 1 \\1 ^ { 2 } + 1 ^ { 2 } & = 1 \cdot 2 \\1 ^ { 2 } + 1 ^ { 2 } + 2 ^ { 2 } & = 2 \cdot 3\end{aligned}$

A) $1 ^ { 2 } + 1 ^ { 2 } + 2 ^ { 2 } + 3 ^ { 2 } = 3 \cdot 5$
B) $1 ^ { 2 } + 1 ^ { 2 } + 2 ^ { 2 } + 3 ^ { 2 } + 5 ^ { 2 } = 5 \cdot 8$
C) $1 ^ { 2 } + 2 ^ { 2 } + 3 ^ { 2 } = 2 \cdot 7$
D) $1 ^ { 2 } + 1 ^ { 2 } + 2 ^ { 2 } + 2 ^ { 2 } = 2 \cdot 5$

Correct Answer:

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