Directions (16-20): In the passage given below there are blanks which are to be filled with the options given below. Find out the appropriate pair of words in each case which can most suitably complete the sentence without altering the meaning of the statement.
Regulators can be both a help and a to the medical industry. A strong ..increases confidence in drugs and devices, . payers and patients alike. That explains why the Chinese drugs regulator recently adopted tougher… Yet rules can also impose too great a burden on firms, slowing ..and reducing competition.