Question

the loss of frances king louis xv because of the__(1) caused the entire line of succession for france including the next king louis xvi to benefit from the english doctor edward jenner who was responsible for first create the (2)__ vaccine by 1796.
1 chickenpox
2 smallpox

1 measles
2 cowpox

1 smallpox
2 smallpox

1 mumps
2 smallpox

Explanation:

To solve this, we recall historical and medical facts: King Louis XV of France died from smallpox. Edward Jenner developed the smallpox vaccine (using cowpox to immunize against smallpox, but the vaccine was for smallpox). So the correct pair is (1) smallpox and (2) smallpox.

Answer:

(1) smallpox, (2) smallpox (the option with "(1) smallpox" and "(2) smallpox")