4.) The Indus Valley Civilization was one of the first civilizations in the world. What two cities were at the center of this civilization? a. Hormuz and Rome
b. Mohenjo Daro and Harappa
c. Indus and Brahmaputra
d. Ganges and Indus

b

Explanation:

The Harappan civilization was located in the Indus River valley. Its two large cities, Harappa and Mohenjo-daro, were located in present-day Pakistan's Punjab and Sindh provinces, respectively. Its extent reached as far south as the Gulf of Khambhat and as far east as the Yamuna (Jumna) River

i don't think it's c or d. i think it's either a or b.

hope this .