I HAD ONLY JUST PUT THE PHONE DOWN WHEN THE BOSS RANG BACK

74.I had only just put the phone down when the boss rang back.A. I put the phone down when the boss rang back.B. Hardly had I put the phone down when the boss rang back.C. No sooner had I put the phone down when the boss rang back.D. Scarcely had I put the phone down than the boss rang back.