Multi-select problem: How does the next paragraph end?

. a a white dog without the use of its hind legs

OPT:
(a). is wearing a padded vest in a run down room, and jumping on a brown cushion to play with something.;
(b). is outside with its owner on the porch.;
(c). is standing on a table eating from a dish.;
(d). walks into a large barn while a woman in a white apron helps a child groom the dog.;
(b).