Question $7(2$ points$)$

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A benevolent social planner would prefer that the output of good $x$ be increased from its current level if$,$ at the current

level of output of good $x,$

social value $=$ private value $=$ private cost $$ social cost.

social cost $>$ private value $=$ social value $>$ private cost.

social cost $=$ private cost $=$ private value $$ social value.

social value $=$ private cost $=$ social cost $>$ private value