Answer:The most likely answer for this question would be D
Explanation: Pondering typically involves the process of carefully thinking of a process for large span of time, and in this case he is doing exactly that.
Hope this helps! :D
Answer:
A vaccine (or immunization) is a way to build your body's natural immunity to a disease before you get sick. This keeps you from getting and spreading the disease. For most vaccines, a weakened form of the disease germ is injected into your body.
Explanation:
Answer: Because Antonio Meucci was a trained engineer, he was able to invent a “talking telegraph.”
Explanation: This is the correct answer because the cause of his invention is the fact that he is a trained engineer, and the effect is the creation of the talking telegraph.
Answer: he sees he's true side
Explanation: