A new approach based on reasoned observation and experimentation is called the A Scientific Revolution. B Renaissance.
C Reformation.
D Industrial Revolution.

A Scientific Revolution.

Explanation:

The Scientific Revolution represents a time in Europe where they began to use the scientific method to explain the phenomena that happened in nature as opposed to religious doctrines.

The scientific method refers to the use of reasoned observation and experimentation to back up theories such that the the various events occurring in nature could be better explained by facts and logic.

john smith was the first englishman to sail around the world. francis bacon served as attorney general and lord chancellor of england. he took up aristotelian ideas, arguing for an empirical, inductive approach, known as the scientific method, which is the foundation of modern scientific inquiry.

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).