Which of the following is considered a developmental delay?

Speech and language delays are considered a developmental delay because they directly impact a child's ability to communicate effectively, which is a critical aspect of their overall development. Developmental delays refer to significant delays in specific areas of development, such as cognitive, physical, social-emotional, or communication skills. In the case of speech and language, if a child is not meeting typical milestones for verbal communication, including speaking and understanding language, this delay can affect their social interactions, academic success, and overall ability to express their needs and thoughts.

In this context, while mathematical reasoning, social interaction skills, and physical fitness are also important aspects of development, they are not classified specifically as developmental delays in the same way as speech and language. Speech and language are foundational for many other skills and serve as a crucial indicator of a child’s developmental progress.