Question

read the paragraph, then choose the word that best completes the sentence. a rover explored a crater on mars and found several signs that the planet once had water. the crater contained a shiny mineral called hematite. on earth, this mineral is formed in water. also, the bedrock in the crater wall was layered, suggesting that the wall was eroded by wind, water, or volcanic lava flows. the rover studied one rock in the crater \el capitan.\ the rock had pockmarks, similar to those an earth rock would develop in the presence of salt. scientists ______ that water was present on mars. a implied b disputed c concluded d cautioned

Explanation:

El párrafo presenta evidencia (hematita, roca con capas, roca con hoyuelos) que apoya la idea de que el agua estuvo presente en Marte. La palabra "concluded" significa llegar a una conclusión basada en evidencia, lo que coincide con el razonamiento del texto. "Implied" significa sugerir sin decirlo explícitamente, pero aquí hay evidencia clara. "Disputed" significa discutir o desafiar, pero no hay contradicción en el texto. "Cautioned" significa advertir, lo que no se ajusta al contexto.

Answer:

C. concluded