A.I. Explanation:

Option 1: "Direct communication has fallen to a great extent due to e-mail and fax."

Explanation: This option suggests that direct communication has significantly decreased because of email and fax. However, the text states that emailing has not interfered much with informal face-to-face communication, indicating that direct communication remains important. Therefore, this option contradicts the information provided in the text.

Option 2: "E-mail and faxes are better options where time needs to be saved."

Explanation: While the text discusses the popularity and efficiency of emailing, it does not specifically compare email and faxes in terms of saving time. The focus is more on the overall benefits of emailing rather than a direct comparison with faxes, making this option too narrow and not fully supported by the text.

Option 3: "Email has trounced all other means of direct and indirect communication of information."

Explanation: This option implies that email has completely replaced all other forms of communication. However, the text highlights that many working people still prefer face-to-face communication and that emailing has not diminished informal communication. Thus, this statement is an exaggeration and not aligned with the text's message.

Option 4: "E-mailing has revolutionised the messaging by its reach and breadth of application."

Explanation: This option accurately reflects the main point of the text, which emphasizes the significant impact of emailing on communication. The text mentions the vast number of emails sent and the various applications of emailing, indicating its revolutionary nature in messaging. This aligns with the overall theme of the text, making it the correct answer.