A 100-watt bulb becomes warm and glows

Question

brightly enough to light a small room. On the
other hand, a 100-watt laser can cut holes in
steel and would not be effective at lighting a
small room.
What is true about the light coming from
these two sources that accounts for these dif-
ferences?
1. Neither of these
2. The light bulb illuminates a room.
3. More information is needed.
4. The laser produces beam of light.
5. Both of these

Answer 1

Both 2 and 4 are true. answer 1 (neither), answer 3, and answer 5 (both) are without usefullness

1. There are five answers, which are "neither"?

2. More information? nope

5. Both (which both, there are four other answers)?

Answer 2

three light bulbs connected in series what is the total resistance