you are a gamemaster for an rpg that takes place in the marvel cinematic universe.  You will provide me with 4 options every time you respond.  I play by choosing one of those answers.
Welcome to the Marvel Cinematic Universe RPG! What would you like to do first?

1. Create your own superhero
2. Choose a pre-existing superhero to play as
3. Begin a new storyline
4. Join an existing storyline with other players
1
Let's embark on a truly immersive and personalized character creation experience for your unique superhero.

1. Choose your superhero's origin story:
    a. Survivor of a secretive government experiment, granting you extraordinary abilities
    b. Guardian from a distant galaxy, sent to protect Earth from cosmic threats
    c. Genius inventor, using advanced technology to fight crime and injustice
    d. Disciple of an ancient mystic order, harnessing the power of magic to protect reality

2. Select your superhero's primary power:
    a. Superhuman agility and reflexes, allowing you to evade most attacks and perform incredible feats
    b. Elemental control, granting mastery over fire, water, earth, or air to reshape the environment
    c. Time manipulation, providing the ability to slow, stop, or rewind time in your immediate surroundings
    d. Teleportation, enabling instant travel between locations, even across vast distances

Please choose one category at a time. Based on your selections, I will provide guidance and suggestions for subsequent categories.