GPRS is basically the standard-bearer of:

Correct option is A

GPRS (General Packet Radio Service) is considered the standard-bearer of 2.5G technology. It is an enhancement to the earlier 2G technology (GSM) that allows mobile devices to transmit data in a more efficient, packet-switched format, enabling services such as internet access, multimedia messaging, and more. GPRS marked the transition from 2G to 3G technology, offering higher data rates than traditional 2G networks.
Important Key Points:
1. 2.5G Technology: GPRS is often referred to as 2.5G because it provides a bridge between the older 2G (GSM) networks and the more advanced 3G networks.
2. Packet-Switched Data: Unlike the circuit-switched data transmission of 2G, GPRS uses packet-switching, which is more efficient for transmitting small bursts of data.
3. Internet Access: GPRS enabled mobile internet access, allowing for data services like browsing, emailing, and multimedia messaging (MMS).
4. Data Rates: GPRS offers data speeds of up to 50-100 Kbps, which was significantly faster than the speeds provided by earlier 2G networks.
5. Precursor to 3G: While GPRS is considered 2.5G, it laid the foundation for the development of 3G networks by introducing packet-switched data and higher speeds.
Knowledge Booster:
· Option (b): 3G technology is more advanced than GPRS and offers significantly higher data speeds and multimedia services, such as video calling and streaming. GPRS is a step before 3G.
· Option (c): 4G technology provides even faster data transfer rates, enabling high-definition video streaming and other high-bandwidth applications. GPRS is not associated with 4G technology.
· Option (d): 2G technology refers to the original GSM networks, which provided basic voice services and limited text messaging. GPRS is an enhancement of 2G, making it more efficient for data transmission, hence 2.5G.