Gridlock occurs when: a. a car cuts into the gap in front of your car b. traffic is required to travel by an alternate route c. vehicles get stuck in the middle of an intersection

 Option 'C' is correct.

Explanation:

Gridlocks is a type of traffic congestion in which there is a blockage of intersecting streets by  queues of vehicles in every possible direction.

Traffic results in complete stand still.

So, It occurs when vehicles get stuck in the middle of an intersection.

It traditionally occur when there is a green light and all vehicles are start moving towards the intersection and there is no enough space on the either side of road.

At that time vehicles block the intersection of streets and stuck in the middle of it.

Hence, Option 'C' is correct.

mass and volume are the answers you are looking for

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.