In the question below, a sentence is given with four words highlighted. These four words may not be in their correct position. 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 replace each other.

Growing (A) children in involving (B) and nurturing a few plants at home can open (C) up the magical (D) world of nature and science to them

The correct answer is A-B.

Step-by-step Explanation:

Let us analyze the given sentence with the highlighted words:
"Growing (A) children in involving (B) and nurturing a few plants at home can open (C) up the magical (D) world of nature and science to them"

1. Analyze the grammatical and contextual structure:
- The phrase "Growing (A) children" followed by "in involving (B) and nurturing a few plants" is contextually awkward and grammatically incorrect.
- The preposition "in" requires a gerund/action to follow it, such as "growing". And the subject performing the action at home should be "children".
- If we swap the words at position A ("Growing") and position B ("involving"), the sentence becomes:
"Involving (B) children in growing (A) and nurturing a few plants at home can open (C) up the magical (D) world of nature and science to them"

2. Verify the swapped sentence:
- "Involving children in growing and nurturing a few plants at home..." makes perfect sense because children are being involved in the activity of growing and nurturing plants.
- The rest of the sentence, "...can open (C) up the magical (D) world of nature and science to them", is grammatically sound and contextually meaningful as it is. Therefore, positions C and D do not need to be changed.

Thus, exchanging A and B makes the sentence grammatically and contextually correct. The correct combination is A-B.