Which of the following examples could be considered a genetically modified food source?
apples are shipped in cold storage containers to increase how long they stay fresh.
peaches are dipped in a waxy substance to prevent the skin from bruising.
carrot seeds are injected with a substance derived from parsnips that makes them more resistant to rot.
carrot plants are sprayed with a fertilizer derived from decayed plants to the plants grow stronger and faster.

“Carrot seeds are injected with a substance derived from parsnips that makes them more resistant to rot” is considered as genetically modified food source.

Option: C

Explanation:

"Genetically modified foods" (GM-Foods) also called "bioengineered food" which is considered different from traditional cross breeding. These foods are developed when an organism carry changes which are injected into their DNA by using genetic engineering method. USA is more developing and fast to launch GM-Foods for example researchers at Texas A&M AgriLife's vegetable and Fruit improvement center observed that calcium absorption is more when consumption is done through carrot. They observed 41% more calcium absorption than regular carrot intake.