Figure out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line.
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) →
Folding along the dotted diagonal turns the upper-left half over onto the lower-right half, and every line lands at its mirror position across the fold. The long upright line on the left falls on the bottom horizontal line, and the three horizontal lines fall on the three upright lines on the right. So the folded sheet shows only one horizontal line and three upright lines under the fold, as in Option (1).
