B6 Mice Are All Genetically Identical and Spend More Time

B6 mice are all genetically identical and spend more time exploring the center of an open field compared to Balb mice. If B6 mouse embryos are implanted into and raised by a Balb mouse dam, the pups will

A) still spend more time in the center of an open field compared to Balb mice.
B) spend the same amount of time in the center of an open field as Balb mice.
C) spend less time in the center of an open field compared to Balb mice.
D) not survive with a mother of a different mouse strain.