Q. Consider the following statements:1. Dengue is protozoan disease transmitted by mosquitoes.2. Retro-orbital pain is not a symptom of Dengue.3. Skin rash and bleeding from nose and gums are some of the symptoms of the  Dengue.Which of the statements given above is/are correct ? 

1. 1 and 2
2. 3 only
3. 2 only
4. 1 and 3