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"Porque" is a form of "porque", a conjunction which is often translated as "because". "Quien" is a form of "quien", a pronoun which is often translated as "who". Learn more about the difference between "porque" and "quien" below.
porque(
pohr
-
keh
)A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
a. because
Mi hermano está triste porque no ganó el concurso.My brother is upset because he did not win the contest.
quien(
kyehn
)A pronoun is a word that stands in for a noun (e.g., she).
1. (relative)
2. (indefinite)
a. anyone
Puedes elegir a quien quieras siempre y cuando levanten la mano.You can choose anyone you like as long as they raise their hand.