A cylindrical tank is filled with water up to a height of 3m. Two identical pressure gauges are fitted at points P and Q situated on the same horizontal level inside the water. Which statement about their readings is correct?
(a) Reading at P is greater than at Q because P may be closer to the wall.
(b) Readings cannot be compared without knowing the cross-sectional areas of the gauges.
(c) Readings at P and Q are equal because pressure at a given depth is the same in all directions.
(d) Reading at Q is greater than at P because Q is farther from the centre.