Which statement about immigration to the u. s. in the late twentieth century is correct?

a.
restrictive laws prevented large numbers of asians from immigrating to the united states.

b.
in the 1990s, most immigrants to the united states came from asia and the americas.

c.
the hispanic population of the united states grew only slightly during the 1990s.

d.
eastern europeans made up the largest single group of immigrants during the 1990s.