Mark the letter A, B, C or D to indicate the sentence that is best written from the words/ phrases given.Câu hỏi Covid-19 pandemic, / a lot / schools I world I have to I close. A. Because of Covid-19 pandemic, a lot schools in the world have to close. B. Because of Covid-19 pandemic, a lot of schools in the world have to close. C. Despite Covid-19 pandemic, a lot schools in the world have to close. D. In spite Covid-19 pandemic, a lot of schools in the world have to close.