The property of inertia is more in :

Options

A. a car
B. a truck
C. a horse cart
D. a toy car.

Explanation

To solve the question "The property of inertia is more in: a car, a truck, a horse cart, a toy car," we can follow these steps:

### Step 1: Understand the Concept of Inertia
Inertia is defined as the tendency of an object to resist changes in its state of motion. This means that an object at rest will stay at rest, and an object in motion will continue in motion unless acted upon by an external force.

### Step 2: Relate Inertia to Mass
The property of inertia is directly proportional to the mass of the object. This means that the greater the mass of an object, the greater its inertia.

### Step 3: Compare the Masses of the Given Options
Now, we need to compare the masses of the options given:
- A car
- A truck
- A horse cart
- A toy car

Among these, we can generally say:
- A truck has the largest mass.
- A car has a smaller mass than a truck but is larger than a toy car.
- A horse cart typically has a mass similar to or less than that of a car.
- A toy car has the least mass.

### Step 4: Determine Which Object Has the Most Inertia
Since inertia is directly proportional to mass, the object with the greatest mass will have the greatest inertia. From our comparison:
- The truck has the maximum mass among the options provided.

### Conclusion
Therefore, the property of inertia is more in a truck.

### Final Answer
**B. A truck**

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