LONDON (AP) — Liz Truss has taken over as U.K. prime minister and is immediately facing up to the enormous tasks ahead of her. The challenges include pressure to curb soaring prices, boost the economy, ease labor unrest and fix a health care system burdened by long waiting lists and staff shortages. At the top of her inbox is the energy crisis triggered by Russia’s invasion of Ukraine, which threatens to push energy bills to unaffordable levels. Truss said she would cut taxes to spur economic growth, bolster the National Health Service and “deal hands on” with the energy crisis, though she offered few details.