B) 11 Thich of the following is an example of ordinal measurement level in a biostatistics context? lood pressure readings D) Number of mutations in a DNA sequence ne expression levels E) Body mass index (BMI) hking of disease severity in patients

## Step 1
Ordinal measurement level in biostatistics refers to a type of data that is categorized based on some scale or order. This scale can be ranked, but the differences between the ranks are not necessarily equal.

## Step 2
Looking at the options provided, we need to identify which one fits the definition of ordinal measurement level.

## Step 3
Option B, "Ranking of disease severity in patients", fits the definition of ordinal measurement level. This is because the severity of a disease can be ranked (for example, mild, moderate, severe), but the differences between these ranks are not necessarily equal.