Answer:
The correct answer will be- low power objective lens.
Step-by-step explanation:
In a light microscope, two types of lenses are used:
1. Ocular lens- the lens near to the eye of a viewer
2. Objective lens- The lens near the object.
Since the field of view decreases with increasing the objective power of the lens, therefore one wants to observe the large field of view than one should use low power of objective lens that is 4x.
Thus, the low power objective lens is the correct answer.