Answer:
The correct answer is B
The red colouration of the lungs looks alarming and adds to the overall message that the flu is threatening
Explanation:
The video is captioned "How Flu Viruses Attack". The explicit message is that the Flu attacks the human body (the lung especially).
The implicit message is that the flu is very life-threatening and this is captured by the image which shows a lung rapidly turn red as the narrators describe the effects of the flu on the lung.
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