How did mass media affect businesses?

a businesses bought a lot of factories to make thousands of mass media

b employees were paid more by businesses because of mass media

c businesses could use mass media to advertise to millions of costumers at once

d stores were put out of business by mass media

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal

Historians have recently discovered a historical journal published in the early twentieth century. the journal contains facts based on original sources about the downfall of the early byzantium empire. historians consider this long-lost journal to be a breakthrough in their understanding of the byzantium empire. based on this information, the journal is a source.

Where did industrial capitalism originate and what advantages did this location have