Which JSON syntax is valid?

Which JSON syntax is valid?
A. {“switch”: “name”: “dist1”, “interfaces”: [“gig1”, “gig2”, “gig3”]}
B. {/”switch/”: {/”name/”: “dist1″, /”interfaces/”: [“gig1”, “gig2”, “gig3”]}}
C. {“switch”: {“name”: “dist1”, “interfaces”: [“gig1”, “gig2”, “gig3”]}}
D. {‘switch’: (‘name’: ‘dist1’, ‘interfaces’: [‘gig1’, ‘gig2’, ‘gig3’])}

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