Choose the correct statements for distinctive features of the Harappan planned 'drainage system':

(A) Roads and streets were laid out along an approximate "grid" pattern.
(B) It seems that streets with drains were laid out first and then houses built along them.
(C) Domestic waste water did not flow into the street drains.
(D) Every house needs to have at least one wall along a street.

Choose the correct answer from the options given below:

(A), (B) and (D) only

The correct answer is Option (1) → (A), (B) and (D) only

(A) Roads and streets were laid out along an approximate "grid" pattern. (Correct)
(B) It seems that streets with drains were laid out first and then houses built along them. (Correct)
(C) Domestic waste water did not flow into the street drains. (Incorrect). In fact, domestic waste water did flow into the street drains. Houses had bathrooms and soak pits connected to street drains.
(D) Every house needs to have at least one wall along a street. (Correct)