The correct option is
A Vascular cryptogams
Cryptogams include non-flowering plants that reproduce by spores. They include thallophytes, bryophytes, and pteridophytes. Thallophytes and bryophytes do not have vascular tissues whereas, pteridophytes have a lower vascular system. Hence, they are the most advanced cryptogams and are also called vascular cryptogams.
Thus, the correct answer is option C.