Which statement is true of homo sapiens?

a. the evolved after the cro-magnons.
b. the have been earth's only hominine for the last 24,000 years.
c. they became extinct about 1 million years ago.
d. they coexisted with homo habilis for several thousand years.

B. The have been Earth's only hominine for the last 24,000 years.

After the unknown eradication of the Homo Neanderthals, Homo Sapiens became the only homonine for the last 24,000 years. That is to say, that modern humans are the result of the evolution of homo sapiens to homo sapiens sapiens.