The correct answer here is C - out of the developments listed, the most
recent development in the use of vaccines was the approval from the
government of a vaccine that can be used against Hepatitis B. This
happened relatively recently, in 1981.
Answer:
The correct answer would be -
a. observation
b. observation
c. invalid
d. observation
e. reasoning
Explanation:
Any observation or statement form or generated by the understanding and nothing any event. The first statement is formed by observing the sun and the rest of the solar system and comparing its mass. The second and fourth statement is also observations made on fact or noticing the.
The fifth statement is reasoning as it deriving something from logic and fact. The third statement is invalid as the universe made before the sun.