Pick up the correct statement from the following:

• A graphical representation of spectral reflectance versis the various growth stages of a crop, depicts a phenologic pattern
• The changes in the polarisation of the radiation reflected or emitted by an object, is known as polarisation variation.
• The degree of polarisation is a characteristic of the object which helps in the identification of the object.
• Signatures only provide statistical nature and are not completely deterministic
• All of these