[单选题]
Equipotential lines representing ther v8u,s*66xs/hnwf;ijd7t hy yh:*ut corresponding potentials are shown in) ; npx9l4v7z 2.d t1-jfwuob3zwqq mo the diagram, in an ew.mq 21z xdwf9n-pvobt; oz34ljuq)7lectric field.
Which of the following is a correct statement regarding this electric field?
A. The electric field is uniform.
B. The work done in moving an electron from P to Q is 20eV
C. The work done in moving an electron from S to Q is 20eV
D. The work done in moving an electron from R to S is 20eV
