Why 'accomodating' is not correct in this sentences

[Naveen]

correct sentence:
For the most popular speakers the committee had decided to use the main hall that is capable of holding at least 200 people.

Correct entry: holding
The error was: (d) supporting

You have found the error but your entry is incorrect.
your sentence:
For the most popular speakers the committee had decided to use the main hall that is capable of accomodating at least 200 people.

Naveen

[Pamela]

"Accomodate" and "hold" are two interchangeable words,that denote "to contain","include"