Read the following context and choose the best option to answer the question.
Context: On Friday , I woke up to let my cat out and my eyes itched , so I gave them a good rub . My left eye began to itch like crazy , so I put some " get the red out " eye drops in and went into the other room . My eye started to hurt , so I went into my bathroom about five minutes later and it was VERY swollen and completely red . Even the white part of my eye was swollen and it looked like a blister had formed on the eyeball , with the exception of the iris and pupil .
Question: What caused the speaker to apply the eye drops , referred to as ' get red out ' ?
Options: 
- They had gone the whole night before with no sleep , and wanted their eyes to be a normal color
 - None of the above choices .
 - They had been smoking marijuana , and were applying the eyedrops to help hide this fact
 - The eye was irritated and they thought that applying the eyedrops might help remedy the situation


The eye was irritated and they thought that applying the eyedrops might help remedy the situation