Correct option is C
The correct answer is (c) look through.
Here, look through is the most suitable option among the given choices because it conveys the idea of understanding or detecting the reality behind the magician’s trick. In this sentence, the speaker means that he could easily understand how the magician performed the trick.
Hindi meaning: यहाँ look through का अर्थ है भेद समझ लेना / चाल को समझ जाना। वाक्य का अर्थ होगा — मैं जादूगर की चाल को आसानी से समझ सकता था।
Meanings of the other options:
· look into = to investigate something (जाँच करना / पड़ताल करना)
· look for = to search for something (खोजना / तलाश करना)
· look about = to look around (इधर-उधर देखना)
Thus, look through is the best fit in the given sentence.