Final answer:
Leading brands use Pega for personalized customer engagement in real-time and across multiple channels, enhancing the customer experience with immediate and consistent interactions. Option 1.
Step-by-step explanation:
The question pertains to how leading brands utilize Pega for customer engagement.
Pega is a business process management tool that allows companies to manage customer interactions across various channels. The correct way that Pega is used by leading brands for personalized engagement is in real-time, across channels.
This means that customer interactions are handled as they happen (in real-time) and are managed across multiple points of contact or communication platforms (across channels), ensuring a seamless and personalized customer experience.
Hence, the right answer is option 1.