A. he wanted to avail of this good opportunity to praise Thomas for his
wisdom and his faith in medical sciences
B. he wanted to support Thomas’ idea that the "great breakthroughs" in any
technology will happen after there is a radical change in our views and our
consequent behaviors
C. he wanted to express his view that there are social and psychological
factors involved in the treatment of disease than biological factors
D. he wanted to show his optimism about breakthroughs in medicine