Where did pure land buddhism first become popular? a. india b. china c. korea d. ceylon

B. China

Explanation:

Pure Land Buddhism, also erroneously sometimes called Amidism, is a school of Mahayana Buddhism and, along with Zen, one of the most popular schools of Buddhism in East Asia. Pure Land Buddhism focuses on faith to the Amitabha Buddha. Pure Land Buddhism is often found in more widespread branches of Buddhism such as the Chinese Tiantai Buddhist School or Japanese Shingon Buddhism.

the answer to your question is a. the salt plains

in 1811, he led an expedition, known as the george c. sibley expedition, to improve relations with the pawnee and kansa tribes, and also to locate the rumored jefferson's salt mountain

probally   a few days after there called