Iron Man, Captain America and Thor emphasise what makes a superhero as Captain Marvel comes up with her own origin story in a new promo.What makes a superhero? That is the question the new promo of Captain Marvel seems to be asking as it puts some of the existing Avengers and the newest addition to the class in the same video.In a video with the caption, “Some are built. Some are made. Some are born. On March 8, witness the rise of a hero,” we see the genesis of Tony Stark, Steve Rogers and Thor’s superstardom. From Tony making the first Iron Man suit in Afghanistan, Rogers being transformed into Captain America and Thor being found worthy, we get a blast from the past till we head towards Brie Larson’s Captain Marvel, said to be the most powerful addition.The actor, who won the best actress Academy Award for Room, plays former US fighter pilot Carol Danvers in the highly anticipated film, set in the 1990s and which follows her path to becoming a superhero.Fans were quick to anoint their favourite Captain Marvel promo.