Mundaka Upanishad, the Mandukya Upanishad and the Prash

Mundaka Upanishad, the Mandukya Upanishad and the Prashna Upanishad are associated with which of the following Vedas?

[A] Atharva-Veda
[B] Rig-Veda
[C] Sama-Veda
[D] Yajur-Veda

This question is part of UPSC Prelims Practice and Mock Tests membership programme.