What action did president gamal abdel nasser take in 1956 that triggered an international crisis
a)he launched an invasion of israel.
b)he nationalized the suez canal.
c)he formed the united arab republic
d)he led an uprising against king farouk.

I think that's  B because...The Suez Crisis, also named the Tripartite Aggression (in the Arab world) and the Kaddish Operation or Sinai War (in Israel),[16] was an invasion of Egypt in late 1956 by Israel, followed by the United Kingdom and France. The aims were to regain Western control of the Suez Canal and to remove Egyptian President Gama Abel Nasser from power.[1