Marine Corps Open 03 Contract?

I have an active duty 0300 contract.. I know they ign you into an MOS at SOI, but do you have to qualify for it, or do they just decide randomly? My GT score is 88. So, in the 03 field i can have either 0311, 0331,0341, or 0351... Rifleman, Machine Gunner, Motorman, or Infantry ault man.. Those require a GT score of 80 and i have an 88. Are those the four jobs i may be put in? ( One of them)