What type of evidence is given by a competent, live witness speaking under oath or affirmation?

Influenza is caused by:

a. allergens b. viruses c. yeast d. fungi

Of the 12 pairs of cranial nerves in our body, which are directly related to the oral cavity?

1 . I 2 . III 3 . V 4 . VII 5 . VIII a. 3 only b. 3, 4 c. 1, 2, 3, 4, 5 d. None of these