Question: Which of the following best describes the scope of the 'Attempted SMS mobile terminating' measurement in terms of radio access technologies?
Option 1: Specifically designed for LTE (Long-Term Evolution) networks only
Option 2: Applicable to both GSM (Global System for Mobile Communications) and UMTS (Universal Mobile Telecommunications System)
Option 3: Exclusively for CDMA (Code Division Multiple Access) networks
Option 4: Encompasses all wireless technologies including Wi-Fi
Explanation: The correct answer is supported by the applicability to GSM and UMTS, indicating the measurement's validity across these wireless communication standards, particularly for SMS handling within mobile networks.