Answer: When two objects are pressed together with more force: B. Friction increases.
Friction refers to a force that resists or prevent the relative motion of two physical objects when their surfaces comes in contact.
This ultimately implies that, friction prevent the surfaces of two (2) objects from easily sliding over each other or slipping across one another.
Generally, the friction between two (2) objects is highly dependent on the force applied on the objects. Thus, an increase in the force applied on these objects would significantly increase the friction and vice-versa.
In conclusion, friction increases when two objects are pressed together with more force.
Explanation: Hope this helps :)