The correct answer is: 10.8 t.
The question is asking for the weight of a certain object. The options are all different weights, and the correct answer is the one that matches the weight of the object.
Option A is 10.8 t. This is the correct answer because it is the weight of the object.
Option B is 10.6 t. This is not the correct answer because it is not the weight of the object.
Option C is 10.4 t. This is not the correct answer because it is not the weight of the object.
Option D is 10.2 t. This is not the correct answer because it is not the weight of the object.
Therefore, the correct answer is 10.8 t.