The Rule of Law states that a principle of governance in which all persons, institutions and entities, public and private, including the State itself, are accountable to laws that are publicly promulgated, equally enforced and independently adjudicated, and which are consistent with international human rights norms and standards.
A sentence has been given in Active/Passive Voice. Out of the four given alternatives, select the one which best expresses the same sentence in Passive/Active Voice.
Improve the bracketed part of the sentence. Scientists (have developed) an “organ-on-a-chip” platform to study how drugs are transported across the human placental barrier.