Step 1: Understanding the Concept:
To solve sentence rearrangement, we must identify the "Sentence Skeleton" (Subject + Verb + Object/Complement).
The phrases provided describe a scene involving a "buzzard" (a large bird of prey) and the "sun."
We need to connect the phrases so that the grammatical "tails" (the ends of phrases) match the "heads" (the beginnings of other phrases).
Step 2: Detailed Explanation:
Let's build the logic for the sequence (A-D-C-B):
1. Step 1 - Identifying the Subject (Part A): "a great buzzard was".
This is a standard subject-helping verb beginning. It tells us "who" or "what" the sentence is about.
2. Step 2 - Identifying the Action (Part D): "circling high overhead a".
The verb "was" (from A) requires a main verb. "Circling" provides this.
The phrase ends with the article "a." In English, "a" must be followed by a singular noun starting with a consonant.
3. Step 3 - Identifying the Noun (Part C): "blob against the blinding".
The word "blob" is the noun that follows "a" (from D).
This creates the visual image: the bird is so high up it looks like a "blob" against the sky.
The phrase ends with "the blinding," which is an adjective phrase needing a final noun.
4. Step 4 - Completing the Scene (Part B): "and scorching sun."
This provides the final noun "sun."
The adjectives "blinding" (from C) and "scorching" (from B) are joined by the conjunction "and" to describe the sun.
Full Sentence: "A great buzzard was circling high overhead a blob against the blinding and scorching sun."
This structure is grammatically perfect and follows a logical visual perspective (Bird $\rightarrow$ Movement $\rightarrow$ Appearance $\rightarrow$ Background).
Step 3: Final Answer:
The only correct arrangement that creates a logical and grammatical sentence is (A) $\rightarrow$ (D) $\rightarrow$ (C) $\rightarrow$ (B).