Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17.

a. Over the past decade, GreenTech Solutions has expanded its reach across multiple continents. Initially a small startup in Silicon Valley, the company is now a major player in the renewable energy sector.
b. As a result, it has opened new offices in Asia, Europe, and South America, employing thousands of workers worldwide.
c. Additionally, the company has been criticized for its lack of diversity in its leadership team, with most top executives being from the same region.
d. However, despite its success, GreenTech faces a significant challenge in meeting global demand, leading to delays in product shipments.
e. The company's mission to create sustainable energy solutions has attracted numerous investors, helping GreenTech grow at a rapid pace.