Read the given passage and answer the questions that follow:

At 50 and on the cusp of celebrating 25 years in the fashion industry with a grand show in Mumbai, the couturier Sabyasachi Mukherjee is refreshingly unromantic about his achievements. "A lot of people think I'm a big deal, but for me, it's like running any other business. I'm not an engineer nor a doctor. I don't save lives or build bridges. I make clothes and get undue amount of attention for that."

His modesty is engaging. At heart, Mukherjee is still the boy who, back in the day as a 20-something designer, had famously said, 'Want to make it big? Be in Bengal. While many thought the idea was bonkers, he stayed put in Kolkata unlike many of its youth who continued to move out for better opportunities. City-proud and stubbornly resistant to all advice to shift base, Mukherjee turned the narrative on its head. From his workshop in Topsia, a suburb on the eastern fringe of Kolkata dotted with tanneries, he built collections steeped in the city with a roaring Royal Bengal tiger as his logo. "Everyone told me staying in Kolkata was suicidal, but I persevered. Now, I'm bringing the whole world to Kolkata", he says, adding that his 25th anniversary show is a homage to the city that has been the core of who he is or what he creates.

With the advent of AI, the world of innovation and technology is at the _____ of astounding progress.

cusp

The correct answer is Option (3) → cusp

Cusp means a point of transition between two different states. The phrase "on the cusp of" means "at the point of transition to." In this context, it signifies that the world of innovation and technology is on the verge of making astounding progress.