Le's Mother Wants to Go Back for Her Ph

Le's mother wants to go back for her Ph.D.at age 65.Based on the brain research,Le should tell his mother that it:

A) is hopeless,because synaptogenesis stops after a certain age.
B) may be hard,but go for it,because synaptogenesis continues throughout life.
C) is easy,because synaptogenesis becomes more frequent with age."
D) is possible,because myelination occurs throughout life.