According to cultural relativism, forcing a child to work in coal mines at the age of 4 is morally wrong in the US today, but is morally permissible in other cultures (e. g. 18th Century England).

True

Explanation:

Often termed as child labor, is a situation where minors or underage children are used as workers in the industries of certain countries.

In the 18th Century England this practice occurred at the start of the industrial Revolution in Britain. Children worked in coal mines at the age of 4, some were also used as errand boys. Many of these children worked because they came from poor homes.

Therefore, the principle of cultural relativism implies that what is morally wrong in the US today, should not be used to judge against the culture in England.