If in a developed nation the width of the bars for an age group of 35 to 40 years decreases for three successive censuses, which one of the following statements is likely to be true?
A) There has been high emigration in that age group.
B) The fertility has increased in that age group.
C) The fertility has decreased in that age group.
D) Other age groups have increased their fertility to compensate for the 35 to 40 age group.
C
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Answer the following statement true (T) or false (F)