Final answer:
Both dT cells and B-1 B cells can self-renew in the periphery and do not need to be replenished from primary lymphoid tissues. Both dT cells and B-1 B cells respond to their antigens via high-affinity receptor responses.
Step-by-step explanation:
Both statements A and D are true about dT cells and B-1 B cells.
- Statement A is true because both dT cells and B-1 B cells can self-renew in the periphery and do not need to be replenished from primary lymphoid tissues.
- Statement D is true because both dT cells and B-1 B cells respond to their antigens via high-affinity receptor responses.
Therefore, the correct answer is Option D: Both A and D.