Which of these is a ball and stick model? C subscript 2 H subscript 4.

2 overlapping large black spheres each with 2 small blue spheres overlapping it.

2 medium sized black spheres connected by 2 grey sticks. Each black sphere has 2 small blue spheres connected to it by 1 grey stick.

2 C's connected by 2 black lines. Each C has 2 H's connected to it each by 1 black line.