The suggested answer is A, B, G.
Implementing VLANs provides several benefits. First, a higher level of network security can be reached by separating sensitive data traffic from other network traffic (option A). This separation ensures that sensitive information is only accessible within specific VLANs, enhancing security. Second, a more efficient use of bandwidth can be achieved by allowing many logical networks to use the same network infrastructure (option C). By segmenting networks logically rather than physically, VLANs optimize the utilization of available bandwidth. Lastly, broadcast storms can be mitigated by increasing the number of broadcast domains, thus reducing their size (option G). This reduces the overall impact of broadcast traffic on the network, enhancing performance and reliability.