In the above graph, we can clearly see that,
During the period $2002$ to $2004$, there was relatively no crow birth.
Whereas, cracker sales also remain flat from $2002$ to $2004$.
In between $2004$ to $2005$, there was a sudden spike in crow birth.
& in this period, cracker sales also increase.
In $2006$, crow birth decreases, cracker sale also decreases.
So, we can say that $\text{there was a strong correlation between crow birth and cracker sales}$.
$\text{Hence, the answer is option A)}$