Read the following context and choose the best option to answer the question.
Context: Ick . " Rin held up her hands and made a face . " I 'll be right back . " She swished the stains and stink away in the running stream and scrubbed well with clean sand and under her fingernails until her skin turned pink . Her right hand seemed a little weak , the buzz and tingle increasing rather than going away . On the same side , her neck and the joint of her jaw grew numb .
Question: Why did Rin wash her hands ?
Options: 
- to prepare for a surgery
 - To get rid of the horrible smell and stains
 - to prepare for a date with the local cowboy
 - because it was part of her normal routine and the water was warm


To get rid of the horrible smell and stains