The correct answer is (a) Kelsen.
Hans Kelsen (1881-1973) was an Austrian jurist and philosopher of law. He is best known for his theory of pure theory of law, which argues that law is a system of norms that is independent of morality and politics. Kelsen also coined the phrase “international law is the vanishing point of jurisprudence,” which means that international law is the most difficult area of law to study and understand.
Blackstone (1723-1780) was an English jurist and philosopher. He is best known for his Commentaries on the Laws of England, which is considered to be one of the most important works of English legal history. Blackstone did not say that “international law is the vanishing point of jurisprudence.”
C. Wilfred Jenks (1909-1996) was a British jurist and international lawyer. He served as the first Director-General of the International Labour Organization from 1947 to 1970. Jenks did not say that “international law is the vanishing point of jurisprudence.”
Holland (1859-1932) was a Dutch jurist and legal philosopher. He is best known for his work on international law. Holland did not say that “international law is the vanishing point of jurisprudence.”