Give the Advantages of using soaps:

Question

$\begin{array}{1 1} \text{(a)Soaps are 100% biodegradable} \\ \text{(b)Soaps work well with Hard water} \\ \text{(c) Soap is suitable for washing woolen garments} \\ \text{(d) Soaps are effective in saline water.}\end{array}$