(10 points) consider the following program, written in javascript-like syntax: : // main program var x, y, z; function sub1() { var a, y, z; . . } function sub2() { var a, b, z; . . } function sub3() { var a, x, w; . . }

look at the engine block shown in the figure. the engine shown in this figure is a/an  

  a. four-cylinder, horizontally opposed engine.

  b. eight-cylinder, v-type engine.

  c. six-cylinder, v-type engine.

  d. four-cylinder, in-line engine