18-4-1 high speed steel contains 18%, 4% and 1% respectively of
(A) Tungsten, vanadium and chromium
(B) Tungsten, chromium and vanadium
(C) Vanadium, chromium and tungsten
(D) Chromium, tungsten and vanadium
(A) Tungsten, vanadium and chromium
(B) Tungsten, chromium and vanadium
(C) Vanadium, chromium and tungsten
(D) Chromium, tungsten and vanadium