Which of the following archaeological sites provide evidence of awareness and technical skill of Harappans for the water resource management ?(a) Dholavira(b) Mohenjodaro(c) Harappa(d) KalibanganSelect the correct answer from the code given below:

• A. (a) and (b)
• B. (b) and (c)
• C. (c) and (d)
• D. (a) and (c)