A bat is fitting about in a cave, navigating via ultra sound beeps, assume that the sound emitti... VIDEO
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(A) рд╕реНрдлреИрдЧреНрдирдо
(B) рдлреНрдпреВрдиреЗрд░рд┐рдпрд╛
(C) рдПрдиреНрдереЛрд╕рд┐рд░реЛрд╕
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