Question

which of the following can be a problem for people with certain kinds of epilepsy?
putting two spaces after a period
using left - aligned text
using all uppercase text
flashing images

Explanation:

Flashing images can trigger seizures in some people with epilepsy, a condition known as photosensitive epilepsy. The other options (putting two spaces after a period, using left - aligned text, using all uppercase text) do not have such a known impact on epilepsy.

Answer:

D. flashing images