Why did the Republican Party have trouble prosecuting meme era of the KKK?

Why do many scientists suppose the land bridge theory of migration?

Can you summarize this? it takes time and caution to perfect anything which must be concealed. it takes time to crush men who are pursuing legitimate trade. but one of mr. rockefeller’s most impressive characteristics is patience. there never was a more patient man, or one who could dare more while he waited. the folly of hurrying, the folly of discouragement, for one who would succeed, went hand in hand. everything must be ready before he acted, but while you wait you must prepare, must think, work. "you must put in, if you would take out." his instinct for the money opportunity in things was amazing, his perception of the value of seizing this or that particular invention, plant, market, was unerring.

Which course of action did president carter propose in order to solve this problem for the next generation? a. contract with foreign nations to build wind turbines b. reduce federal spending on solar cell energy research c. drill fewer offshore wells to conserve marine life d. develop alternative energy sources