4. What other benefits can you think of for an e-book reader?Select one:a. An e-book reader is also friendly to the environment as it helps to reduce paper and carbon emission. Although it is an expensive investment at the start, parents can save money on printed books. b. An E-book reader has a lot of benefits. That’s why it is very popular among children. c. Although an e-book reader has many benefits, it is rather expensive for most working class families.