A person is suffering from one disease and shows the following symptoms, like sustained high fever (39 to 40 degree Celsius), weakness, stomach pain, constipation, hedache and loss of appetite. His doctor confirmed that he is suffering from one bacterial infection.On which of the following facts (given below) his doctor confirmed the bacterial in fection.

i. Salmonella typhi bacteria are responsible for the infection.

ii. Streptococcus pneumonia is responsible for the infection.

iii. By seeing the report which shows the positive result of Widal test.

iv. The pathogen is transmitted through the bite of female Anopheles mosquito.

v. As a results of infection, the alveoli get filled with fluid leading to severe problem in respiration.