Q. If the water table rises upto ground surface, then the

• (A) Effective stress is reduced due to decrease in total stress only but pore water pressure does not change
• (B) Effective stress is reduced due to increase in pore water pressure only but total stress does not change
• (C) Total stress is reduced due to increase in pore water pressure only but effective stress does not change
• (D) Total stress is increased due to decrease in pore water pressure but effective stress does not change