Which of these is a properly formatted dictionary?

(1 point)
Responses

socks = {'light': 4.99, 'medium': 8.99, 'heavy': 9.99}

socks = {'light': 4.99, 'medium': 8.99, 'heavy': 9.99}

socks = ['light': 4.99, 'medium': 8.99, 'heavy': 9.99]

socks = ['light': 4.99, 'medium': 8.99, 'heavy': 9.99]

socks = [['light': 4.99], ['medium': 8.99], ['heavy': 9.99]]

socks = [['light': 4.99], ['medium': 8.99], ['heavy': 9.99]]

socks = ('light': 4.99, 'medium': 8.99, 'heavy': 9.99)

The properly formatted dictionary is:

socks = {'light': 4.99, 'medium': 8.99, 'heavy': 9.99}