Which is the most accurate description about cells that make up larger organisms (e. g., whales, elephants) compared to smaller organisms (e. g., bacteria, ants)? a. larger organisms are made up of more cells than smaller organisms. b. larger organisms are made up of fewer cells than smaller organisms. c. larger organisms are made up of larger cells than smaller organisms. d. larger organisms are made up of smaller cells than smaller organisms.

A. Larger organisms are made up of more cells than smaller organisms. 

B is definitely not true because its very unrealistic. 
C could maybe be rue but is not always true like A is.
D could also maybe be true occasionally, however again it is not on the spot like A. 

Electron equations of the given changes are as follow,a)                              cu      →      cu⁺²  + 2e⁻b)                              mg⁺²  +  2 e⁻      →      mgc)                              cl⁻    →      cl  +  1e⁻d)                              s  +  2 e⁻    →      s²⁻e)                                o²⁻      →      o  +  2 e⁻f)                              p  +  3 e⁻    →      p³⁻g)                              fe²⁺    →      fe³⁺  + 1 e⁻h)                              s²⁻    →      s⁴⁺  +  6 e⁻