Officer darden believes a crime has been committed at a certain location. before entering the premises to investigate, what must he first obtain?

Police must be careful not to exceed the scope of the warrant.

Before entering the premises to investigate, Officer Darden must have a search warrant granted by a judge based on probable cause. Judges review information submitted based on probable cause. They then determine if there is enough evidence to grant the warrant.

explanation:

there are two statements that are incorrect.

1. the marshall plan was a lend lease program. it was an economic plan that europe redevelop itself after wwii.

2. einstein didn't really do anything to further the allied cause in building the bomb. he merely sent a letter to fdr telling him (in 1939) that if the united states entered the war, perhaps it would be wise to build the bomb before germany did. i would say this answer is incorrect, but when america entered the war 2 years later, fdr thought it might be a good idea to take einstein's advice.

the 4th choice is definitely so wrong that is likely the single answer of this question

d) a constitutional amendment