Question

There was an unexpected guest at the conference, _____ an extra chair was brought in.

while
although
so
because

Answer 1

Answer:

so is the right answer

Explanation:

HÔPË ÏTẞ HÉLPFŪLL

PLS MARK AS BRAINLIEST

Answer 2

there was an unexpected guest at the conference,so an extra chair was brought in.