Dr. Yang studies cross-cultural differences in body maturation and growth, including differences in body size, proportion, appearance, health, and perceptual abilities. Dr. Yang is interested in development.

The answer is Human Physiological development.

Explanation:

Human physiological development is a study of how the human body matures, and grow in size. Since Dr. Yang is studying multi cultural differences, then he would bee interested in  body sizes, proportions, appearances, health and perceptual abilities of various cultures in the world.

Physical development is the answer. Therefore,

Dr. Yang studies cross-cultural differences in body maturation and growth, including differences in body size, proportion, appearance, health, and perceptual abilities. Dr. Yang is interested in physical development.

Refer below for the explanation.

Explanation:

Physical development refers to the changing of body, mind, appearance, health.

given the fact that the question is about the detail that best support the idea that oppressive leaders use   propaganda to achieve thir goals,   the first option does not refer to any kind of propaganda, since it only tells about that the milk and the windfall apple should be reserved for the pigs. in the second option, that is, "snowball and napoleon sent out flights of pigeons whose instructions were to mingle with the animals on the neighbouring farms, tell them the story of the rebellion, and teach them the tune of "beasts of england". it can be identified that the oppressors make use of the propaganda, which is represented by the pigeons, and the information they have to tell other animals about what was happening in the farm in order to get their objectives. for that reason, the right answer is the second option, taking into account that the third option do not refer to propaganda since it only talks about that they did not want jones back. and, finally, the last option refers to the result of the given news, but it does not mean about the propaganda they used to achieve their goals.

tom robinson he was a black man that was accused of raping caucasian woman, and an idealistic lawyer offers to defend him. which makes nobody believe in the innocence of a negro.