Answer:
a. The second sentence provides background for the first
Explanation:
According to the first sentence, research has proven that colorful and vivid advertisements helps to attract more people.
Additionally, the second statement says that marketers use various research studies to develop their advertisement.
The relationship between the two sentences is that the second sentence provides background for the first by explaining how the market research has helped.
C or d both are good but I am leaning towards c
Answer: There’s no text, but I can tell you this: Watching television and generally using any piece of technology creates demand for electricity, this allows businesses such as coal power plants to make a profit and stay in business. needless to say, coal power plants, due to their burning of coal, release CO2 into the atmosphere, adding to global warming.
Explanation: