All unauthorized experiments are prohibited. A True B False B

## Step 1<br />The problem presents a statement: "All unauthorized experiments are prohibited." This statement is a general rule or guideline that is often followed in various fields, especially in scientific research and experiments.<br />## Step 2<br />The term "unauthorized" refers to actions that are not permitted or approved by the relevant authorities or governing bodies. In the context of experiments, this means experiments that have not been approved or sanctioned by the appropriate authorities or governing bodies.<br />## Step 3<br />The term "prohibited" means that such actions are not allowed. Therefore, the statement is saying that all unauthorized experiments are not allowed.<br />## Step 4<br />Given the above explanation, the statement is true. Therefore, the correct answer is (A) True.