How does soap affect the surface tension of water?

Question

Options:

A . Soap increases surface tension, so more soapy drops fit on the penny than drops of regular tap water.

B . Soap decreases surface tension, so more soapy drops fit on the penny than drops of regular tap water.

C . Soap increases surface tension, so fewer soapy drops fit on the penny than drops of regular tap water.

D . Soap decreases surface tension, so fewer soapy drops fit on the penny than drops of regular tap water.

Answer: Option D

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