Yeah lowkey i think it’s B
You have a distance and a time so you can work out the bikes speed which would be distance/time so 40mph.
The answer is (B. The study of Matter and Energy) but technically you could consider physics all of these as engineering is based on physics and that would be the study of inventions, chemistry and biology were both discovered because of physics, and physics invokes more math than any other subject as it applies math to the entire Universe.
. . . 'protect' its domestic steel industry, by
increasing the price of imported steel.