Directions (21-24):In each of the questions given below, four words have been highlighted. These four words may or may not have been placed in their correct positions. The sentence is then followed by options with the correct combination of words that should replace each other in order to make the sentence grammatically and contextually correct. Find the correct combination of the words that should replace each other. If the sentence is correct as it is, then select option (e) as your choice.

A lead (A) to exchange experiences on societal benefits (B) and growth as complementary goals would forum (C) to fresh thinking on employment (D) and the environment.

The correct answer is A-C.

Let us analyze the original sentence to determine the correct placement of the highlighted words:

"A lead (A) to exchange experiences on societal benefits (B) and growth as complementary goals would forum (C) to fresh thinking on employment D and the environment."

Step-by-step grammatical and contextual breakdown:

1. In position (A), the noun "lead" is preceded by the article "A", but looking at the structure "A [noun] to exchange experiences...", the word "forum" fits appropriately as the noun denoting a meeting or medium for discussion: "A forum to exchange experiences...".

2. In position (C), the modal auxiliary verb "would" requires a base verb to follow it. "forum" is a noun and cannot act as a main verb here. Swapping "forum" with "lead" places the base verb "lead" after "would": "...would lead (C) to fresh thinking...". This makes the phrase grammatically correct and contextually meaningful ("would lead to fresh thinking").

3. The words in positions (B) ("benefits") and (D) ("employment") are already in their correct places and make logical sense within the context of societal advantages and job creation.

Therefore, swapping A and C restores the sentence to its correct form:

"A forum (A) to exchange experiences on societal benefits (B) and growth as complementary goals would lead (C) to fresh thinking on employment (D) and the environment."