Figure A shows the front view of the human female reproductive system and Figure
B shows the development of a fertilized human egg cell
Figure A

--- Figure B.

Identify the correct stage of development of human embryo (Figure B) that takes place
at the site X, Y and Z respectively in the human female reproductive system (Figure
A).
Choose the correct option from the table below:
| # |
X |
Y |
Z |
| A |
Morula |
Fertilized egg |
Blastocyst |
| B |
Unfertilized egg |
Fertilized egg |
Morula |
| C |
Blastocyst |
Fertilized egg |
Unfertilized egg |
| D |
Fertilized egg |
Morula |
Blastocyst |