Tick the alternative which contains the appropriate definition of the expression “rules of the road”, underlined in the text above: a) an internat...

Tick the alternative which contains the appropriate definition of the expression “rules of the road”, underlined in the text above:

a) an international instrument setting up an agency and regulating its scope or authority
b) a customary practice developed in the interest of safety and often subsequently reinforced by law
c) any of the rules making up a code governing ships in matters relating to mutual safety
d) a special rule about how a game is played on a particular field, court, or course
e) a regulation or dogma decreed by a church council