In a survey, students were asked whether they study Mathematics (M), Physics (P) and Chemistry (C). The following probabilities were estimated: P(M)=0.45, P(P)=0.35, P(C)=0.25, P(M∩P)=0.15, P(M∩C)=0.10, P(P∩C)=0.08 and P(M∩P∩C)=0.05. What is the probability that a randomly chosen student studies at least one of the three subjects?
a) 0.67
b) 0.82
c) 0.77
d) 0.72