Task: Question Answering
Input (English): Question: Ophthalmological ointments: 
 Options:  <1> They may contain solid particles but only with a controlled size. <2> They do not need to be sterile. <3> They require the test of pyrogens. <4> They can not be W / O emulsions. <5> Always your excipients must be fatty
Output (English): 1