Which of the following phrases best describes the term scientific model?

a. the application of scientific knowledge to make predications about an object, system, or process
b. a physical copy of a scientific object, system, or process
c. a simplified representation used to explain or make predications about something
d. an experiment in which variables are controlled

A scientific model is can be best defined as the simplified representation used to explain or make predication about something.

Explanation:

Scientific Models and their Importance

A scientific model is a simplified version of an object, phenomenon or a system to understand it in an easier manner. With the help of a scientific model, we can predict the process and analyse the stature of any objector system more accurately.

For example, with the help of a globe, we are able to understand the regional structure of the Earth, location of places, mountains, oceans etc. By studying a clear model of an aircraft, we are able to explore its structure, design and mechanism in a simpler and accessible manner.

This is not limited to the extents of visual analysis but we can also estimate and predict the stature of other scientific phenomena such as climate change, weather conditions, structural differentiation etc. That's why scientific models are always worth for study and researches.