Q: Question: what causes an afterimage? Would "The process behind positive afterimages is unknown, though thought to be related to neural adaptation ." be a reasonable answer?

OPTIONS:
- No
- Yes

A: No

Q: Question: how many ports are there in networking? Would "The port number, added to a computer's IP address, completes the destination address for a communications session." be a reasonable answer?

OPTIONS:
- No
- Yes

A: No

Q: Question: how many classes of vitamins? Would "However, vitamins have been produced as commodity chemicals and made widely available as inexpensive semisynthetic and synthetic-source multivitamin dietary and food supplements and additives, since the middle of the 20th century." be a reasonable answer?

OPTIONS:
- No
- Yes

A: No

Q: Question: WHERE IS GOCHEOK DONG BRANCH? Would "The Guro Declaration, adopted during the forum, aims to set up a portal site for e-government development and to establish a concrete project in order to bridge the digital divide among the world's cities." be a reasonable answer?

OPTIONS:
- No
- Yes

A:
No