Option A: Incorrect. Scanning two fields simultaneously isn't how interlacing works - fields are scanned sequentially, not simultaneously. Simultaneous isn't correct. Option B: Incorrect. Scanning each field from bottom-to-top isn't how interlacing works - fields scan top-to-bottom, alternating odd/even lines. Bottom-to-top isn't correct. Option C: Incorrect. Scanning lines left-to-right in one field and right-to-left in next isn't how interlacing works - all lines scan left-to-right, alternating odd/even. Direction change isn't correct.