$($a$)$ What does this piece of code $($Lines $3-9)$ create?

A set of yellow spheres $($representing charges$)$ placed in a line of length $2$

A single sphere $($representing a charge$)$ with a radius $\frac{R}{20}$

A set of yellow spheres $($representing charges$)$ that are placed in circle of radius $R$

A set of yellout spheres $($representing charges$)$ that are placed in circle of radius R$/20$

$($b$)$ What line in this code determines the position of each particle in the Charge list?

Line $6$

Line $9$

Line $3$

Line $7$

Line $4$

$($c$)$ What line in the code "updates" the while loop written in line $3?$

Line $4$

Line $7$

Line $9$

Line $3$

Line $6$