Question: A 29-year-old woman, obese, with no history of interest, who consulted for a bilateral, intense, pulsatile headache lasting one month, accompanied by horizontal diplopia and episodes of monocular amaurosis of seconds duration. The exploration is normal, except for the presence of bilateral papilledema. Which of these tests do you think will allow you to fully confirm your diagnosis ?: 
 Options:  <1> Ultrasound of supra-aortic trunks. <2> Magnetic resonance of the skull. <3> Electroencephalogram. <4> Lumbar puncture. <5> Visual evoked potentials.
4