Which of the following most closely defines lean-to in the excerpt below? In the woman and her three children, stranded in a roadside canvas lean-to, such critics suggest, Lange found a subject for her photographic art: a subject removed in time and circumstances from her prosperous clients in her previous practice; but she approached her nevertheless from a similarly detached perspective.

Answer choices for the above question

A. A well-built structure made of steel and brick

B. A temporary living place made with available materials

C. A patio with a roof made to provide shade from the sun

D. An expansive log cabin with a porch and fireplace