下列各句中，没有语病且语意明确的一句是

Your daughter has two children, doesn’t she?—That’s right; she for ten years.

________ the police thought he was the most likely one, since they had no exact proof about it, they could not arrest him.[ ]

This group of designers __________ a plan for the project of the company.[ ]

Too many sweets and not enough exercise will make you ______ weight.