I think it is c because primary research is original and from the certain time while secondary research is collected from others by research and stuff
A sedentary disease is <span>a type of lifestyle with no or irregular physical activity. A person who lives a </span>sedentary<span> lifestyle may colloquially be known as a couch potato. It is commonly found in both the developed and developing world.</span>
Alcohol is a depressant of the central nervous system. It boosts the number of neurotransmitters in the brain that slow down neuron-to-neuron communication when eaten in tiny amounts. Brain activity diminishes as a result of this alteration.
