Recent research investigating the brain's plasticity suggests that

A) the plasticity of the brain is unlimited; it is our ability to measure it that is limited.
B) the brain's plasticity and flexibility increases with age.
C) the neural wiring of the brain is flexible and constantly evolving.
D) after infancy, new neurons only form in the left hemisphere of the brain.

Recent research has shown that the neural wiring of the brain is flexible and constantly evolving, meaning that the brain's plasticity is not limited to early childhood or certain areas of the brain. However, it does decline with age, suggesting that option B is incorrect. Option A is also incorrect because there are limits to the brain's plasticity, such as in cases of severe damage or degenerative conditions. Option D is incorrect because research has shown that new neurons can form in various parts of the brain throughout adulthood, not just in the left hemisphere.