What significant invention made both bicycle and automobile transportation possible?
a.
combustion engine
c.
dunlop tires
b.
ford's model-t
d.
steam engine

The correct answer is C) Dunlop Tires.

Dunlop Tires made both bicycle and automobile transportation possible.

Pneumatic tires were invented in Scotia in 1839. They were invented by Robert Thomson. He created a process called vulcanization, adding sulfur to rubber and used for horse-drawn carriages. John Boyd Dunlop applied the same principle but to bicycles and later did the same with tires for cars.

c

Explanation:

booker t. washington was an educator who established the tuskegee institute. washington argued that african americans should learn trades that would offer them the opportunity to be progressive citizens. instead of fighting against discrimination, washington argued that african americans should use their education and knowledge to become self-sufficient in american society and not in competition with white americans.

w.e.b du bois was the founder of the niagara movement and later the naacp, du bois disagreed with washington. he argued that african americans should consistently fight for racial equality.

ida b. wells was a journalist who wrote about the horrors of lynching in the south. wells work could be considered muckraking as it led to the development of the anti-lynching campaign.