In a static fluida. only normal stresses can existb.ffluid pressure is zero(a)                luid pressure is zero(a)                luid pressure is zeroc.viscosity is nild.resistance to shear stress is smalle.linear deformation is small

It seems like there's a bit of confusion in your question as it's not clear. However, I'll try to explain each point you've mentioned in the context of a static fluid:

a. Only normal stresses can exist: This is true. In a static fluid, the fluid is at rest or moving at a constant velocity. This means there are no shear stresses, only normal stresses (pressure).

b. Fluid pressure is zero: This is not necessarily true. The pressure in a static fluid is not zero, but it is constant at any given depth. The pressure can change with depth due to the weight of the fluid above.

c. Viscosity is nil: This is not true. Viscosity is a property of the fluid itself, not a condition of whether the fluid is static or moving. Even in a static fluid, there is viscosity.

d. Resistance to shear stress is small: This is not necessarily true. The resistance to shear stress in a fluid is determined by its viscosity. A fluid with high viscosity has a high resistance to shear stress, whether it's static or moving.

e. Linear deformation is small: This is true. In a static fluid, there is no flow or movement to cause deformation. Any deformation that does occur (such as compression due to pressure) is typically very small.