What About the Brachyury (BTBR) Mouse Strain That Suggests It

Multiple Choice

What about the brachyury (BTBR) mouse strain that suggests it might not be a useful animal model to understand autism spectrum disorder (ASD) ?

A) BTBR mice show a deficit in social interaction.
B) BTBR mice demonstrate repetitive self-grooming.
C) BTBR mice lack a corpus callosum
D) BTBR mice show delayed approaches to their peers.