RCC Structures Design
Pick up the assumption for the design of a pre-stressed concrete member from the following:

A transverse plane section remains a plane after bending
During deformation limits, Hook's law is equally applicable to concrete as well as to steel
All listed here
Variation of stress in reinforcement due to changes in external loading is negligible

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RCC Structures Design
The self-weight of the footing, is

Not considered for calculating the upward pressure on footing
Both (b) and (c)
Not considered for calculating the area of the footing
Also considered for calculating the upward pressure on footing

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