A researcher who does not want to manipulate or interfere with the behavior of research subjects would conduct a study.

Your answer is going to be d.

Staying organized is correct according to edgenuity

The equal protection clause, is part of the 14th amendment to the united states constitution,the clause, which took effect in 1868 provides that no state shall deny to any person within its jurisdiction "the equal protection of the lawthe equal protection clause states that citizens are protected equally under the law