Proponents of believe that reading should be taught by presenting the basic skills that underlie reading. question 24 options:

Proponents of "code-based approach of reading" believe that reading should be taught by presenting the basic skills that underlie reading.
For example the sounds of letters, phonics, and the way how letters and sounds are joined to make words etc. A growing mount of evidence shows that this method of reading is superior. 

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.