Answer: They are newly evolved traits.
Step-by-step explanation:
A shared character can be define as the character which is shared between the two lineages and that is common. A derived character can be define as the character that is evolved in the lineage leading to the formation of the clade that are common to the set members of the clade except from other individuals.
On the basis of the above explanation, They are newly evolved traits. is the correct option.