question: @ Override public Enumeration < Option > listOptions ( ) { Vector < Option > result = enumToVector ( super . listOptions ( ) ) ; result . add ( new Option ( "\tThe number of arcs to use. (default " + defaultNumArcs ( ) + ")" , "A" , 1 , "-A <num>" ) ) ; result . add ( new Option ( "\tThe cardinality of the attributes and the class. (default " + defaultCardinality ( ) + ")" , "C" , 1 , "-C <num>" ) ) ; return result . elements ( ) ; }
target:  Returns an enumeration describing the available options.