Which of the following statements is false?

a) an amendment can be proposed by a 2/3 vote in the house of representatives.
b) an amendment can be proposed a national convention called by congress at the request of 2/3 of the state legislatures.
c) an amendment can be ratified by approval of state legislatures in 3/4 of the state legislatures.
d) an amendment can be ratified by approval of conventions held in 3/4 of the state.

The development of simple stone tools by early hominids led to the ability to procure meat more efficiently. this in turn led to the change in diet that included larger amounts of protein. many scholars believe that this shift in diet was a significant part of how our ancient ancestors adapted so quickly to a varied set of environments, and thus were able to begin cultural development. this demonstrates the intimate connection between