Among the obligatory steps of ablution are intention, washing the face, washing the hands to the elbow and also
rinsing the mouth
wiping the two ears
washing the feet
silence during the ablution
Correct answer is C
In Islam, ablution, or Wudhoo', is to wash one's face, hands, arms, head and feet with water. Allah, the Most High, Says (what means): "O you who have believed! When you rise to [perform] prayer, wash your faces and your forearms to the elbows and wipe over your heads and wash your feet to the ankles..." [Quran 5:6]
Allah does not accept the prayer of one who nullified his ablution until he performs it again.