……………. his alert and vigilant presence, all predatory animals were said to have been kept within bounds.

1. ……………. his alert and vigilant presence, all predatory animals were said to have been kept within bounds.

[ঢাবিঃ ক ইউনিট (বিজ্ঞান অনুষদ) ২০২০-২০২১ : 2021]

1. Hence

2. However

3. in addition to

4. Because of

Answer

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