Option c is correct

Explanation:-

The semipermanent combination provide curve is vertical that reflects economists’ beliefs that modifications within the combination demand solely briefly change the economy’s total output. within the semipermanent, solely capital, labor, and technology have an effect on combination provide as a result of everything within the economy is assumed to be used optimally. The semipermanent combination provide curve is static as a result of it's the slowest combination provide curve.

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