2:I[5751,[],""] 4:I[8003,["138","static/chunks/138-338b445c4cbceabf.js","3","static/chunks/3-b4862a6e1de95ec0.js","628","static/chunks/app/papers/%5BpaperId%5D/%5Byear%5D/%5Bid%5D/page-257c971832fd49dc.js"],"default"] 6:I[9275,[],""] a:I[1343,[],""] b:I[101,["138","static/chunks/138-338b445c4cbceabf.js","987","static/chunks/app/papers/%5BpaperId%5D/%5Byear%5D/layout-3942c697a7972a68.js"],"default"] c:I[6324,["138","static/chunks/138-338b445c4cbceabf.js","987","static/chunks/app/papers/%5BpaperId%5D/%5Byear%5D/layout-3942c697a7972a68.js"],"default"] 13:I[4080,["185","static/chunks/app/layout-f07fbac6855a712f.js"],""] 14:I[231,["138","static/chunks/138-338b445c4cbceabf.js","986","static/chunks/986-a23d2b0476d0b49a.js","368","static/chunks/app/papers/%5BpaperId%5D/page-879e8aaf99bd7bd0.js"],""] 16:I[6130,[],""] 5:T536,

Answer: ["A","D"]

Key insight
The socket has four holes of specific shapes and orientations (one triangular, one circular, two rectangular of different sizes). A plug fits only if every pin matches its corresponding hole exactly in shape, size, and position.

Step by step
Step 1: Identify the four hole shapes and their spatial arrangement in the socket.
Step 2: For each plug option, check if the number, shapes, sizes, and orientations of the pins match the socket holes exactly.
Step 3: Option A — pins match the socket holes in shape and arrangement. ✓
Step 4: Option B — one or more pins are the wrong shape or orientation. ✗
Step 5: Option C — pin arrangement or sizes do not match. ✗
Step 6: Option D — pins match the socket (possibly viewed from a different angle). ✓
Therefore the answer is A and D.

Why wrong options are wrong
Option B: A pin shape or orientation does not correspond to the available holes.
Option C: The pin configuration is incompatible with the socket hole layout.

Remember for exam
For plug-socket questio

Shown on the left is a socket with four holes in it. Which of the plugs will fit perfectly in this socket?