The teachers present at the teacher's lounge could be there for a variety of reasons, for example it could even me a meeting of the supporters of the school uniform! his sample is therefore possibly biased - there is no way of knowing that it represents the whole population. He chose it because it was convenient to him - and the answer is "a, convenience sampling"
"The Senate of the Roman Republic was a political institution in the ancient Roman Republic. It was not an elected body, but one whose members were appointed by the consuls, and later by the censors. After a Roman magistrate served his term in office, it usually was followed with automatic appointment to the Senate." -Wikipedia
Hope this helped you!
Answer: Decrease; Also decrease
Explanation: Conditioning is a process of learning and behavior modification through stimulus-response mechanisms on the central nervous system of the individual. This process is linked to Behaviorism.
The conditioned stimulus is a previously neutral stimulus that, after becoming associated with the unconditioned stimulus, eventually triggers a conditioned response.
