The answer is B because it's 80 percent copper, that's a greater number then 20.
Answer:

Explanation:
Given that,
Capacitance 1, 
Capacitance 2, 
Capacitance 3, 
C₁ and C₂ are connected in series. Their equivalent is given by :



Now C' and C₃ are connected in parallel. So, the final equivalent capacitance is given by :



So, the equivalent capacitance of the combination is 1.97 micro farad. Hence, this is the required solution.
F=ma
F=QE = 1.602e-19C*700N/C = 1.1214e-16N
1.1214e-16N = ma = 1.6726e-27kg * a
a = 6.702e10 m/s² along the direction of the field line
That would be <span>the national chairperson
-I hope this helped.</span>