Roltech Limited Is an Asian Telecom Company That Operates GSM

Roltech Limited is an Asian telecom company that operates GSM networks in six countries across South Asia.Roltech's top managers identify that the company's growth has been idle for a few years and decide to take these steps to promote growth: (1) Increase the spending on advertising and intensify promotional activities.(2) Open telecom companies in European markets such as Germany and Britain.(3) Introduce special tariffs to attract more customers from South Asian markets.Which of the following strategies have Roltech's top managers decided to adopt?

A) market development and diversification
B) product development and diversification
C) market penetration and market development
D) product intensification and product development
E) market penetration and market diversification