11. A sensitive thermometer is one which A. Is sensitive to heat
B. has large bore
C. can record big changes in temperature
D. can record small changes in temperature​

A. ls sensitive to heat

this is correct answer

I hope it's helpful for you

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .

the answer is a. hope this .