I need to know the prepositions in the following question.

The patient is a 42-year-old male with a history of left shoulder osteomyelitis wit resistant pseudomonas from an injury he sustained approximately 20 years ago.

with

of
with
from

To identify the prepositions in the given question, you can start by recognizing the words that indicate relationships between other words or phrases in the sentence. In this case, here are the prepositions in the question and the words they are connected to:

1. "with" - connects "a history of left shoulder osteomyelitis" to "resistant pseudomonas"
2. "from" - connects "an injury" to "he sustained approximately 20 years ago"

So, the prepositions in the given question are "with" and "from".