This statement is false.
According to NIH (National Institutes of Health), it is both strongly suggested AND required that the informed consent process be delivered in a language that is understandable to the subject. If the subject doesn't completely understand this process, it will be void as they have to be familiar with everything.
My answer to the 1st question is letter B.

From my opinion, it is always highly recommended that we must know a second language always for better understanding of sake. There are a lots of advantages of learning a second language rather than our regular spoken language. Having a second language helps us to develop more problem solving skills, analytical techniques, critical thinking, improved memory and understanding new grammatical rules and vocabulary. Knowing a second language makes us more enough confident and intelligent than others. Suppose for example, we are traveling to a different country or region in which we are not familiar with their language spoken there i.e it may be (French, Spanish, Italian, Mexican..) then we'll be definitely trying using translator devices. Rather than these occupations, knowing a second language helps to understand better and identify their culture and tradition even more deep. This helps to develop mutual understanding between the people whom we talk in their language and we get to know and understand things even more better. It will also help us to travel in any corner of the world too without any fear of languages. So do try to learn new language is the best and epic hack and life skill which lasts long forever!
in the story “A Cub Pilot” by Mark Twain, Mr. Bixby, the narrator’s chief, plays a key part in his life by teaching him a life lesson.
That life lessons that Mr. Bixby teaches the narrator is not second guess himself.
As a cub pilot, the narrator is training to become a steamboat pilot and must exercise “good and quick judgment” and “calm courage” (28).
Mr. Bixby challenges the narrator’s judgment by making him second guess himself. This is significant because......