Associate the following features with the groups in which they first appeared:
$(a)$ Vascular tissues
$(b)$ Notochord
$(c)$ Seeds inside fruits

(A) Vascular tissues $-$ Pteridophyta: These are the first land plants to possess specialized vascular tissues ($xylem$ and $phloem$) for the conduction of water and nutrients.
$(b)$ Notochord $-$ Protochordata: The notochord is a flexible,rod-like structure that provides skeletal support and first appears in the group Protochordata.
$(c)$ Seeds inside fruits $-$ Angiosperms: Angiosperms are flowering plants where seeds are enclosed within fruits,which is a defining characteristic of this group.