PLEAS HELP THIS IS IMPOSSIBLE MATCH THE LETTERS TO THE MEANING sorry don't mean too yell

The specific department of health and human services (hhs) regulations that apply to research with children are known as: subpart b: additional protections for children involved as subjects in researchsubpart a: the common rulesubpart d: additional protections for children involved as subjects in researchsubpart c: protections for children in research

What is grievance 28 on the declaration of independence explained in simpler words? plz

Which characteristics are true of the arabian desert? choose all answers that are correct.has land mostly below sea levelcovers almost the entire arabian peninsulacontains the largest sand sea in the worldhas very few people living there