A square pile of section $50 \, \text{cm} \times 50 \, \text{cm}$ and length $15 \, \text{m}$ penetrates a deposit of clay having $C = 5 \, \text{kN/m}^2$ and the adhesion factor $\alpha = 0.8$. What is the load carried by the pile through skin friction only?
Which of the following statements are true?
A. The proportioning of footing in sand is more often governed by settlement rather than by bearing capacity.
B. The pressure bulb profiles under a strip footing form as co-axially imaginable bulbs under its length.
C. Friction piles are also called as 'floating piles'.
Choose the most appropriate answer from the options given below: