The correct answer is: B. Pare : Trim
Drawl is a way of speaking in which the words are pronounced slowly and with a long, drawn-out sound. Pare is to cut or trim something, especially in order to make it smaller or neater. Trim is to cut or shape something so that it is neat and tidy.
Saunter is to walk in a leisurely or relaxed manner. Walk is to move at a regular pace on the feet, never running.
Scintillate is to shine or sparkle with a bright light. Flash is a sudden burst of bright light.
Foster is to encourage or promote the development of something. Develop is to make or become more advanced or mature.
In each of the other options, the two words do not have the same relationship as drawl and speak. For example, saunter and walk are both ways of moving, but they do not have the same meaning as drawl and speak. Saunter means to walk in a leisurely or relaxed manner, while walk simply means to move at a regular pace on the feet.