They took him in on Saturday night with blood clots in both lungs . Apparently this a common side effect from the hip surgery he had . But it 's still sacry . The symptons were like he was having a heart attack .

Based on the preceding passage, choose your answer for question Why did he have hip surgery ?
Options are: (a). Because it 's scary . (b). None of the above choices . (c). Because his hip joint is in poor shape . (d). Because he had blood clots in both lungs .
The answer is:
(c).