YEP MUSCULAR SYSTEM IS THE ANSWER.
A calories because calories is what causes wight gain
An experiment conducted by a health care practitioner to evaluate treatments or interventions and their effectiveness over time is called a randomized clinical trials.
Measuring effectiveness throughout the course of medical care permits a client and health care practitioner to debate what appears to be operating, what does not appear to be operating, and needing for changes to the treatment.
After a treatment set up has been in effect for an acceptable amount, treatment analysis is undertaken to work out whether or not the goals of consultation are earned, whether or not the set up enforced has been effective, and whether or not the treatment has been acceptable to client and health care practitioner.
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The correct answer is D. International trade
Explanation:
International trade allows countries all around the world to import (buy products from other countries) and export (sell products to other countries). In this way, countries can focus on exporting those products in which they specialize while bringing from other countries (import) products they do not produce or do not specialize in.
For example, Costa Rica, which is a country in Central America exports products such as bananas and coffee, and due to international trade, this country can focus on these two products and import other products such as oil, technology, etc. from other countries as Costa Rica does not produce these. Thus, the process that helps countries import things they cannot make while allowing them to specialize in exports is International trade.