An igneous rock that formed from magma cooling slowly would have A. a fine grain
B. large crystals
C. no crystals
D. no grain

B

Explanation:

If magma cools very slowly, few centers of crystal growth develop. Slow cooling also allows charged atoms, or ions, to move large distances within the magma. Slow cooling results in the formation of large crystals. Igneous rocks with large crystals exhibit a coarse-grained texture.

a fine grain

Explanation:when magma cools slowly below the Earth's ... Most intrusive rocks have large, well-formed crystals. ... Coarse grain varieties (with mineral grains large enough to see without a ... Fine grained rocks.

answerformal;