[Solved] Why is the need for a dry surface prior to developer application more of a disadvantage with a dry developer than with a non-aqueous wet developer?

Q.	Why is the need for a dry surface prior to developer application more of a disadvantage with a dry developer than with a non-aqueous wet developer?
A.	Because the dry developer only forms a thin film on the surface of the test piece
B.	Because the solvent in a non-aqueous wet developer penetrates deeper into discontinuities to contact entrapped penetrant and draw it back out
C.	Because the warm test piece causes evaporation of the solvent in the nonaqueous developer
D.	All of the above
Answer» A. Because the dry developer only forms a thin film on the surface of the test piece

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