Adevelopmental researcher who is interested in studying what senses are used most often by a child or what the long-term results of premature birth are would be studying development.
a) social
b) physical
c) personality
d) cognitive

d) cognitive

Explanation:

A cognitive psychologist will research on all those aspects that concern the formation of thought and the awareness of thinking.

When a child is born, there will be stages that will follow as stated by Piaget. They will be characterized by a process that involves the learning and development of cognitive functions.

If premature birth happens, there will be studies to show how can this impact the essential skills and cognitive abilities.

Usually, before the child fully grows, they are unable to understand the things that go around well, ideas or feelings. Later when the child grows, they can recognize their thoughts and also separate them from thoughts from others.

depends.

explanation: