Given the table with the information provided:
[tex]\[
\begin{array}{|l|c|c|}
\hline
& \text{Types of Bacteria} & \text{Associated disease} \\
\hline
\text{Form} & X & \text{Strep throat} \\
\hline
\text{Coccus} & \text{Rod shaped} & Y \\
\hline
\text{Bacillus} & \text{Spiral} & \text{Cholera} \\
\hline
\text{Spirillum} & & \\
\hline
\end{array}
\][/tex]
To identify the best descriptions for \( X \) and \( Y \), compare the given answer possibilities with typical bacteria forms and their associated diseases:
1. Form ("X") = Spherical: Spherical bacteria are typically referred to as coccus. Strep throat is indeed caused by spherical bacteria (Streptococcus).
2. Coccus = Rod shaped ("Y") = Pneumonia: This suggests a misalignment. Normally, coccus is spherical, not rod-shaped. However, the table seems to imply a mismatch.
3. Bacillus (Rod-shaped) = Spiral and is associated with Cholera: This aligns bacillus with a different form and disease.
4. Spirillum typically refers to spiral or helical shapes.
By process of elimination and the provided bacterial disease associations:
- X correctly aligns with "Spherical bacteria" as Strep throat is caused by Streptococcus.
- Y aligns with "Pneumonia", which can be caused by rod-shaped bacteria like Streptococcus pneumoniae.
So, the closest and most logical match, recognizing the possibility of an associative error in the labels, is:
\(\mathbf{X = \text{Spherical}}; Y = \text{Pneumonia}\)
Thus, the correct choice from the list is:
[tex]\(\mathbf{X = \text{Spherical}; Y = \text{Pneumonia}}\)[/tex]
