A student was performing the Kinyoun's acid fast staining method on a sample of bacteria. The resulting stained slide contained only cells that appeared blue when visualized using a microscope. Which of the following could explain why only blue cells were present?

$$

No acid$-$fast bacteria are present on the slide

The student forgot the methylene blue staining step

The student forgot the carbolfuchsin staining step

The student forgot the acid$-$alcohol decolorization step

Multiple Choice

Only $3$

$1,2,$ and $4$

Only $4$

Only $2$

Only $1$

$1$ and $2$

$1$ and $3$