All the rods have same conductance 'K' and same area of cross section 'A'. lf ends A and C are maintained at temperature $2{\mathrm{T}}_0 \mathrm{adn} {\mathrm{T}}_0$ respectively then which of the following is/are correct?

Rate of heat flow through ABC, AOC and ADC is same

Rate of heat flow through BO and OD is not same

Total rate of heat flow from A to C is $\frac{3 \mathrm{K} \mathrm{A} {\mathrm{T}}_0}{2\mathrm{a}}$

Temperature at junctions B, O and D are same