Let's all help to compile some information for this year's PB?

MX10
A = ?
B = ?
C+ = ?
C = 2
C-= ?

MX11
A = ?
B = 2.4 - 3
C+ = ?
C = 1.75
C-= ?

MX12
A = ?
B = ?
C+ = ?
C = ?
C-= ?