A sealed container at 300 K holds a mixture of H₂, Ne, and Cl₂ at a total pressure of 1.20 atm. If the partial pressures of H₂ and Ne are 0.25 atm and 0.60 atm, respectively, what is the partial pressure of Cl₂?
a) 0.85atm
b) 0.95atm
c) 0.35atm
d) 0.45atm