Which of the following best describes the role of a virtual classroom platform like Lessonspace or Bramble compared to a general video conferencing tool?
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A
They only support group sessions, not one-on-one tutoring
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B
They combine video calling with built-in tutoring tools like whiteboards and document sharing in one interface
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C
They are exclusively for K-12 students and cannot be used for adult learners
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D
They do not support screen sharing