Developmental events are calculated from
A) ovulation.
B) conception.
C) the last menstrual period.
D) fourteen days after the last menstrual period.
E) fourteen days before the last menstrual period.

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The Answer of Developmental events are calculated from
A) ovulation.
B) conception.
C) the last menstrual period.
D) fourteen days after the last menstrual period.
E) fourteen days before the last menstrual period.

Developmental Events Are Calculated from