You deal and pick up this hand.
1C* = 16+, Precision
1NT**= 8-13 balanced (may have a stiff honor, may have a bad minor 5 bagger)
2H***= asks for support in hearts
2NT****= minimum range (8-10), support (at least xxx/Hx, where H = AKQ)
At this point your system allows the following to invesrtigate further for a possible slam:
- new suit is Control Asking bid to find out 3rd round control [xx or Qxx(x)], 2nd [x/kx(x)], 1st round [void/A(x)]control, or AK(x).
- rebidding hearts asks for the quality of support
- 4NT is roman key card blackwood.
- 4H is signoff
What choice is best ?

Help

Opps silent
1C*:1NT**
2H***:2NT****
?