Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A : Standardization practice in dairy industry is unsafe from microbiological point of view
Reason R : The separation is carried out at around $40^{\circ}\text{C}$ which is a congenial temperature for microbial growth and the cream and skim milk obtained, if used for standardization, would seed high number of microorganisms}
In light of the above statements, choose the correct answer from the options given below