Gertrude writes a short story in which the main character must enter a nuclear-powered spaceship’s engine room that has lost its shielding in order to prevent the engine from flooding the rest of the ship with radiation. The main character is not wearing protective gear. What effects are best for Gertrude to consider when planning what may happen to the character? non-stochastic effects such as possible DNA mutations later in life resulting from the short-term, high-level exposure non-stochastic effects such as severe burns and radiation sickness resulting from the short-term, high-level exposure stochastic effects such as possible DNA mutations that are unlikely to occur from the single, low-level exposure stochastic effects such as severe burns and radiation sickness resulting from the long-term, low-level exposure