Final answer:
The verbs 'jugar' and 'tener' both include a 'g' in the 'yo' form and also feature a stem change when conjugated.
Step-by-step explanation:
The two verbs that have a "g" in the yo form and also undergo a stem change are c) Jugar and b) Tener. In the case of jugar, the yo form is juego, where the u changes to ue in the stem change (e.g., jugamos in the present tense). Similarly, for the verb tener, the yo form is tengo, and it undergoes an e to ie stem change in other forms (e.g., tienes, tiene).