Identifying Teratogens Linked to Limb Formation Defects

During the initial stages of prenatal development, various factors can influence the health and development of the fetus. Researchers have studied a variety of teratogens, which are substances that can cause malformations or functional abnormalities in a developing fetus. Understanding these teratogens is crucial for expecting parents and healthcare providers alike.

Which of the following teratogens is most specifically linked to developmental issues related to limb formation, particularly in terms of amelia and meromelia?