MCQ
Identify $X$ from figure


- ✓Sporozoites
- BSalivary gland
- CMosquito host
- DHuman host

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Assertion $A$: Endometrium is necessary for implantation of blastocyst.
Reason $R$: In the absence of fertilization, the corpus luteum degenerates that causes disintegration of endometrium.
In the light of the above statements, choose the correct answer from the options given below:

