Please choose the correct ending to complete the given sentence: Health: [header] How to get pals certified [title] Make sure you meet the requirements. [step] If you're not qualified, you will be unable to enroll in a pals class. Pals certification is only given out to medical professionals who work directly with infants and young children.

Ending1: For example, a baby must be under 2 years old. A blood smear test is required to evaluate the well-being of babies. Ending2: [substeps] Paramedics, nurses, and doctors whose job involves providing emergency medical care to children are usually required to be pals certified. [title] Look for american heart association (aha) training centers. Ending3: Make sure to study those certifications thoroughly to ensure that you have those credentials. These certifications can be one in six chosen courses in completion of this semester. Ending4: These students are self-supervised for 10 years after becoming certified. [substeps] The degrees and degrees you earn during school-school will factor into your curriculum requirements.

Answer format: ending1/ending2/ending3/ending4