In each of the following questions, four words are given in bold. These four words may or may not be placed correctly in the sentence. The sentence is followed by options indicating the correct combination of words that should be interchanged to make the sentence both grammatically and contextually meaningful. Identify the correct pair(s) of words that need to be swapped. If the sentence is already correct as it stands, choose option (E).

The organization is trained (A) to support (B) in conducting a qualified (C) needs assessment (D).

The correct option is Only (A) -(C).

Step-by-step Explanation:
1. Analyze the context of word (A) and word (C):
In the original sentence, the word trained (A) is used to describe the organization, while qualified (C) modifies "needs assessment". Contextually, an organization is qualified (having the official capacity, credentials, or competence) to provide support or conduct tasks.
2. Evaluate the swap between (A) and (C):
When we swap trained (A) with qualified (C), the sentence reads: "The organization is qualified to support in conducting a trained needs assessment." This makes logical and contextual sense.
3. Verify words (B) and (D):
• support (B) acts correctly as the base verb following "to" (to support).
• assessment (D) correctly acts as a noun compound ("needs assessment").

Corrected Sentence:
"The organization is qualified to support in conducting a trained needs assessment."