Woman tows SUV with her teeth

An 81-year-old granny shocked villagers in Binzhou, Shandong province by towing an SUV with her teeth. Wang Xiaobei, who rose to fame when she showed her skills on a TV reality show, towed the SUV weighing 1.5 tons. Apart from towing the vehicle, Wang also showed that she can break walnuts into pieces with her teeth. What's more, she has retired but still works as an accountant.

How heavy was the SUV which the granny towed?

A. 0.5 tons

B. 1.5 tons

C. 2.5 tons