Question

stem changing verbs e - ie, sa
marta jugar tenis y baloncesto.
quiere queremos quiero quieren

Explanation:

In Spanish, for the stem - changing verb "querer" (to want), with the third - person singular subject "Marta", the correct form is "quiere". "Queremos" is the first - person plural form, "quiero" is the first - person singular form, and "quieren" is the third - person plural form.

Answer:

quiere