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Which outcome limits reaction speed as temperature nears absolute zero?

A)Insufficient kinetic energy
B)Increased quantum tunneling
C)Endothermic reaction favored
D)Catalyst deactivation accelerates

💡 Explanation

Reactions slow because molecules possess minimal kinetic energy; therefore the activation energy barrier prevents reaction, so insufficient energy means lower rate, rather than processes like tunneling which become relevant at higher energies under those conditions.

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