If there had been one eye of the man, then

Options

A. image of the object would have been inverted
B. visible region would have decreased
C. image would have not been seen three-dimensional
D. Both (b) and (c )

Explanation

To solve the question regarding the implications of a man having only one eye, we can break it down into several steps:

### Step 1: Understanding Binocular Vision
Humans typically have two eyes, which allows for binocular vision. This means that the brain receives slightly different images from each eye, which helps in depth perception and the ability to see in three dimensions.

**Hint:** Think about how having two eyes helps in perceiving depth and distance.

### Step 2: Impact of Having One Eye
If a man had only one eye, he would lose the ability to perceive depth as effectively as with two eyes. The brain would not receive two different perspectives, which are crucial for depth perception.

**Hint:** Consider how depth perception works with two different viewpoints.

### Step 3: Inversion of Images
With one eye, the image of an object would still be inverted, as it is with two eyes. However, the perception of the image would be different because of the lack of depth cues.

**Hint:** Recall how images are formed in the eye and how they are processed by the brain.

### Step 4: Decrease in Visible Region
With one eye, the field of view would be reduced. This means that the visible region would be smaller compared to having two eyes, which provide a wider field of view.

**Hint:** Think about how peripheral vision works with two eyes versus one.

### Step 5: Conclusion
From the above points, we can conclude that:
- The visible region would decrease.
- The image would not be seen three-dimensionally.

Thus, the correct answer to the question is that both statements about the decrease in visible region and the inability to see in three dimensions are correct.

**Final Answer:** Both B and C are correct.