[单选题]
A circuit of a cell of electromotive for0*akgm-r9 g ctce (.(lqum km k*4tm3 sh s*s*w,5ng e/sfkemf) $18.0\,VE and negligible internal resistance connected to three resistors of resistance $6.0\,Ω$
The ammeter is ideal. What is the reading of the ammeter?