Question

teenagers greater emotional volatility is due to _________, while their increased reasoning skills is due to ____________. (mark all that apply)
synaptic pruning of the frontal lobe; full development of the limbic system when the frontal lobe is not fully mature
full development of the limbic system when the frontal lobe is not fully mature; synaptic pruning of the frontal lobes
synaptic pruning of the frontal lobes; increasing myelination of the frontal lobes
increasing myelination of the frontal lobes; incomplete development of the limbic system.
incomplete myelination of the frontal lobes; synaptic pruning of the frontal lobes

Explanation:

The limbic system, which is involved in emotions, develops earlier than the frontal lobe (which is crucial for reasoning and impulse - control). Synaptic pruning in the frontal lobe (a process of eliminating unused synapses) is related to the refinement of cognitive functions (reasoning skills).

Answer:

full development of the limbic system when the frontal lobe is not fully mature; synaptic pruning of the frontal lobes