Answer:
The answer is c.
Step-by-step explanation:
Though, more xpensive, the halogen L.B. lasts a lot longer than the,(4 lack of expression on my part).. the "swirly bulbs" are lined with a chemical that affects the environment once disposed of..
The gov. has forbidden the public from buying these bulbs. Although, menards, walmart, etc...bought a surplus of these bulbs, companies are desperate 2 get rid of them, bcause of the above issues..but still not cheap...