Why did cities in Texas grow during the 1920's ?

Why did cities in Texas grow in the 1920s?

(A) A severe drought made water extremely scarce in rural areas.

(B) Oil fields were depleted, causinh people to seek employment. elsewhere .

(C) People left farms to find jobs in the new industries found in and near cities.

(D) Manufacturing in rural area was booming.​

The main reasons for America's economic boom in the 1920s were technological progress which led to the mass production of goods, the electrification of America, new mass marketing techniques, the availability of cheap credit and increased employment which, in turn, created a huge amount of consumers.

c 3 branches because idk why they had 3 well when:

you think of it there are still contrys with 3

4 copper and gold, the california gold rush is why im pretty sure.