Tenement apartments in the early 1900s were spacious but crowded. small and unsafe. crowded but safe. updated and spacious.

Tenement apartments in the early 1900s were small and unsafe. Option B is correct.

A tenement is a multi-occupancy building of any type.

The term tenement originally referred to tenancy and to any rented accommodation. The New York State legislature defined it in the Tenement House Act of 1867 as: (quote)

"Any house, building, or portion thereof, which is rented, leased, let, or hired out to be occupied or is occupied, as the home or residence of more than three families living independently of one another and doing their own cooking upon the premises, or by more than two families upon a floor, so living and cooking and having a common right in the halls, stairways, yards, water-closets, or privies, or some of them."

it allows shippers to carry commercial goods, which allows them to save time and money.