Place in order the expected sequence of fine motor developmental milestones for an infant beginning with the first milestone achieved and ending with the last milestone achieved. Provide answer using lowercase letters separated by commas (e.g., a, b, c, d, e).
A) Voluntary palmar grasp
B) Reflex palmar grasp
C) Puts objects into a container
D) Neat pincer grasp
E) Builds a tower of two blocks, but fails

B, A, D, C, E
Grasping occurs during the first 2 to 3 months as a reflex and gradually becomes voluntary. By 5 months, infants are able to voluntarily grasp objects. Gradually, the palmar grasp (using the whole hand) is replaced by a pincer grasp (using the thumb and index finger). By 8 to 10 months of age, infants use a crude pincer grasp, and by 11 months, they have progressed to a neat pincer grasp. By 11 months, they put objects into containers and like to remove them. By age 1 year, infants try to build towers of two blocks but fail.