Question

A colour image is shown on the left. If the blue sky is painted black and the leaves are painted white, which is the CORRECT black and white image among the scaled options shown on the right? 

• A. A
• B. B
• C. C
• D. D

Hint:

For colour-to-black-and-white transformations, focus on major elements of the image and how they change when specific areas are recoloured.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
The original picture has blue sky showing through gaps between overlapping green leaves. Repainting the sky black and the leaves white swaps these two colours everywhere, without changing the shapes at all.

Step 2: Key Formula or Approach:
First mark out exactly where the blue sky is visible in the original (the small gaps at the top, and a larger irregular strip lower down), then check which option turns exactly that same area black, leaving everything else white.

Step 3: Detailed Explanation:
Comparing the black areas in each option against the true sky-gap shapes from the original picture, options A, C and D each shift, resize, or misplace part of the jagged boundary or the small top gaps. Option B reproduces the sky-gap shapes accurately as black regions, with the rest of the picture correctly turned white.

Step 4: Final Answer:
Option B is the correct black-and-white repainting of the original picture.

Answer 2

Simply counting the separate black shapes in the upper part of each option, and comparing that to the number of separate sky gaps visible between the leaf tips at the top of the original picture, is a quick way to narrow down the choices before checking exact shapes.

1. Option A: The count of separate shapes at the top matches, but their exact outlines do not follow the original sky gaps precisely.
2. Option B: Three separate black shapes appear at the top, matching the three sky gaps between the leaf tips in the original, and the lower jagged region also matches the original boundary.
3. Option C: The lower jagged black region does not follow the same boundary line as the original leaf-and-sky overlap.
4. Option D: The top shapes are close in number but differ in size and position from the true sky gaps.

Counting and then matching the exact outlines of the black regions confirms option B as the correct conversion.

So the correct answer is Option B.