U..S. consumer prices rose a seasonally adjusted 0.3% in October as energy prices increased for the fifth time in six months to offset another rare decline in rents, the Labor Department reported. The consumer price index has fallen 0.2% in the past year. The core CPI rose 0.2% in October, led by higher prices for cars and trucks, due in part to the unwinding of the government’s cash-for-clunkers deal.