Match the columns
Column $I$
Column $II$
$(a)$ Third week
$(1)$ Development of pre umbilical code
$(b)$ Third month
$(2)$ Body develops but head remains big
$(c)$ Fourth week
$(3)$ Embryonic slit widens
$(d)$ Fourth month
$(4)$ Muscles activate
Match the columns
| Column $I$ | Column $II$ |
| $(a)$ Third week | $(1)$ Development of pre umbilical code |
| $(b)$ Third month | $(2)$ Body develops but head remains big |
| $(c)$ Fourth week | $(3)$ Embryonic slit widens |
| $(d)$ Fourth month | $(4)$ Muscles activate |
$(a - 3), (b - 2), (c - 1), (d - 4)$
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- [AIIMS 1997]