Mikhail gorbachev's "glasnost" called for

a
the soviet union to create more nuclear missiles

b
openness in political and economic affairs

c
economic and political restructuring

d
trade reforms with existing trade partners

Select all that apply. if you lived in the olmec civilization you might have: 1) been amoung the first people on the planet to eat corn 2)worshiped a cougar deity 3)seen sculptures with downturned mouths and eyes 4)visited pyramids on a coastal island 5) made small figurines to put in trenches around the local temple