A.3 Yes. The phrases "resistant" and "retardant" are the key to understanding the distinction between "flame" and "fire," which are sometimes used interchangeably.
If a substance is "flame resistant," it won't melt or leak even when subjected to high temperatures and won't catch fire.
Flame-resistant materials can catch fire, although this is quite unlikely; in fact, many flame-resistant materials would suffocate a fire to the point where it is extinguished.
Chemically prepared to extinguish themselves in the event of a fire, "flame retardant" materials are safe for use in various settings.
If there's a fire, it'll release gasses to put it out. Fire retardant chemicals are often applied to plastics and furniture to lessen the likelihood of a fire spreading.