For which of the two pairs,the angle of contact is the same?

Given below are two statements: One is labelled as Assertion $(A)$ and the other is labelled as Reason $(R)$.
Assertion $(A)$: Clothes containing oil or grease stains cannot be cleaned by water wash.
Reason $(R)$: Because the angle of contact between the oil/grease and water is obtuse.
In the light of the above statements,choose the correct answer from the options given below.

The grease deposited on a glass plate can be easily removed by cleaning the glass with hot water containing detergent powder,because the detergent powder

The angle of contact between glass and mercury is......... $^o$

The value of the contact angle for kerosene with a solid surface is ........ $^o$.

$A$ hydrophilic surface is characterised by the contact angle at the water-solid interface. The value of the contact angle should be: