Question

why is studying current conflicts sometimes difficult?
most sources are already proven to be wrong.
some issues are still unfolding and uncertain.
people do not care about current events.
there are no sources available for research.

Explanation:

Current conflicts are ongoing events, so key details, outcomes, and full contexts are still developing, making definitive study hard. The other options are incorrect: most sources aren't proven wrong, people often care about current events, and there are typically sources available for research.

Answer:

Some issues are still unfolding and uncertain.