Two identical tumblers are fully filled with water at a certain temperature . One of the tumbler is warmed up and the other cooled . But it is formed that water overflows from both the tumblers . The temperature at which they are fully filled is

Question

$(a)\;4\;K\qquad(b)\;277\;K\qquad(c)\;277^{0}C\qquad(d)\;277^{0}F$