Its B breast milk. i have a kid and thats all they wanted me to do.
Answer:
b. ex post facto or quasi-experimental.
Explanation:
An ex post facto search is done when a researcher cannot manipulate one of the variables such as sexual behavior or smoking (as described in the question), ie this type of research is done when it is not possible to manipulate the independent variables as they already arrive ready for research. Ex-post fact research deals with variables that are unmanipulated in nature. Quasi-experimental research can also be done for this same situation.
The answer is stress can lead to increased vulnerability to infections and immune deficiency disorders. It can also raise heart rate pulse
Mark me brainliest plzz:))
I can help if you post a picture of the image