An iron cylinder contains helium at a pressure of 250 Kpa at 300K. The cylinder can withstand a pressure of $1\times10^6 Pa$ . The room in which cylinder is placed catches fire. Predict whether the cylinder will blow up before it melts or not melting point of cylinder = 1800K
$(a)\;1100K\qquad(b)\;1200K\qquad(c)\;1300K\qquad(d)\;1400K$