A. 3 years
B. 1 years
C. 2 years
D. 1 month

A. 2 years
B. 4 years
C. 6 years
D. 8 years

A. One year
B. Two years
C. Three years
D. Four years

A. 12 CDE6
B. 12C456
C. 123DE6
D. 123456

A. Maxillary first
B. Maxillary second
C. Mandibular first
D. Mandibular second

A. From birth to 11 years
B. From 6 months to 11 years
C. From 6 months to 6 years
D. From 6 years to 11 years

A. Deciduous maxillary 2nd molar
B. Deciduous maxillary 1st molar
C. Deciduous mandibular 2nd molar
D. Deciduous mandibular 1st molar

A. Central incisors
B. Mandibular first molar
C. Mandibular second molar
D. Canines

A. 4th month of life
B. 4th month in utero
C. 41/2 month in utero
D. 5th month in utero

A. Mandibular central incisor
B. Mandibular first molar
C. Maxillary central incisor
D. Maxillary second molar