Answer:
D. His improvements allowed the steam engine to run more efficiently on oil instead of coal.
A sponsor is a member of congress who is willing to introduce and back the legislation.
A chamber is a legislative meeting hall.
One of the two chambers in government, either the senate or the house of representatives: house of congress
Activity concerning a bill which may include debates and compromises: floor action.
The time when congress is active and members are present, fulfilling their respective duties: in session
Definately <em><u>B. The Automobile</u></em>
You’re right the answer is B
