An introductory sentence for a brief summary of the passage is provided below. Complet

e the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points. The popular use of right hand was and is believed to relate to the physical differences between the two sides of the brain, and there is also some historical evidence. Answer Choices A. Scientists believe that subtle physical differences between the two sides of the brain are demonstrated by physical differences between the right and left sides of the interior of the skull. B. Scratches on fossil human teeth also provide information for the relation of the popular use of right hand to the physical differences between the two sides of the brain. C. The human figures represented in the paintings appear to be less carefully shaped than those of animals. D. Those humans have been predominantly right-handed for more than 5000 years. E. Cro-Magnon cave paintings present outlines of human hands in which one hand is placed against the cave wall while the other is applying paint. F. The evidence found in anthropological studies shows that the record of handedness in early human ancestors can be traced back to at least 1.4 million years ago.

The word daunting in Paragraph 1 is closest in meaning to ______.

A．solvable

B．frightening

C．promising

D．intrepid