Let there be a spherically symmetric charge distribution with charge density varying as `rho(r)=rho(5/4-r/R)` upto `r=R`, and `rho(r)=0` for `rgtR`, where r is the distance from the origin. The electric field at a distance r(rltR) from the origin is given by
A. ` (4 pi rho_0r)/(3varepsilon_0) (5/3 -r/R)`
B. ` (4 pi rho_0r)/(3varepsilon_0) (5/3 -r/R)`
C. ` (4 pi rho_0r)/(3varepsilon_0) (5/4 -r/R)`
D. ` (4 pi rho_0r)/(3varepsilon_0) (5/4 -r/R)`