A hotel has a fixed capacity of 100 rooms in the short run. Which statement BEST describes the short-run elasticity of supply for rooms at this hotel? A) The supply is elastic at quantities above 100 rooms but inelastic at quantities below 100 rooms. B) The elasticity of supply is equal to 1 in the short run but infinitely elastic in the long run. C) The elasticity of supply is zero in the short run because the short-run supply curve is vertical. D) The supply is infinitely elastic in the short run but perfectly inelastic in the long run.