What is the electric field vector at point 1? Express your answer as a multiplier of η₀ϵ₀i^.
a) E = 1.5η₀ϵ₀i
b) E = 2.0η₀ϵ₀i
c) E = 2.5η₀ϵ₀i
d) E = 3.0η₀ϵ₀i