The verb is underlined in the sentence. what principal part is the verb?

leaves change their colors in the fall.

a.
present participle

b.
past

c.
present

d.
past participle

- "bill clinton ( the 42nd u.s. president, served in office from by low unemployment, declining crime rates and a budget surplus. during clinton's second term, the u.s. economy was healthy, unemployment was low and the nation experienced a major technology boom and the rise of the internet."

- "friedan's attitude towards what she calls the 'feminine mystique' is that she sees the ideal of femininity as stiffing women's potential in the 1950's. betty friedan was a writer and activist of the 1950's and 60's."

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