2. State when would only first argument be evaluated and when both first and second arguments are evaluated in following expressions

if a = 5, b = 10, c = 5 , d = 0. 
(i) b > c and c > d   # Both
(ii) a <= b or c <= d   # Both
(iii) (b + c) <= a and not (c< a)   # First only
(iv) b < d and d < a   # First only