Bidding practice

The most widely-played natural bidding system in North America. 5-card majors, strong 1NT (15-17), strong 2C, weak twos, Stayman, and Jacoby transfers.

North is the dealer. No one has bid yet. What is North’s opening call?

North

Q 10 5 4
A K J
Q 8
9 5 4 2
HCP: 12
Shape: 4-3-2-4
Balanced: yes

Select North’s opening call: