Sorry taking educated guess but from my perception it's b but ??????
An example of attribution a tendency
Answer: more than 30,000
Explanation:
The U.S. Coast guard has protected the U.S. coastline for centuries. They provide maritime law enforcement, aid navigation, protect the marine environment and most relevantly, embark on search and rescue missions.
The year 2013 saw them respond to more than 30,000 search and rescue missions which enabled them to save over 7,000 lives.
1/3 chance. You have 15 marbles 5 which are black. That makes it 5/15 which reduced would be 1/3