Crystalline form of Sulphur is

Given below are two statements : Statement-I : alpha and beta forms of sulphur can change reversibly between themselves with slow heating or slow cooling. Statement-II : At room temperature the stable crystalline form of sulphur is monoclinic sulphur. In the light of the above statements, choose the correct answer from the options given below:

Crystalline form of sulphur stable at room temperature is

The crystalline form of sulphur that is stable at room temperature is

Which of the following is a crystalline form of silica ?

Which is the crystalline form of silica