1,2.

A1: continuous.
A2: continuous.
A3: continuous.
A4: continuous.
A5: continuous.
A6: continuous.
A7: continuous.
A8: continuous.
A9: continuous.
A10: continuous.
A11: continuous.
A12: continuous.
A13: continuous.
A14: continuous.
A15: continuous.
A16: continuous.
A17: continuous.
A18: continuous.
A19: continuous.
A20: continuous.
A21: continuous.
A22: continuous.
A23: continuous.
A24: continuous.
A25: continuous.
A26: continuous.
A27: continuous.
A28: continuous.
A29: continuous.
A30: continuous.
