1) - removing barriers to trade does not protect from foreign influence - false.
2) regional trade blocks are usually correlated with decreasing, not increasing tariffs - false.
3) this it true - and this is the reason - correct answer
4) it increased, not reduces diffusion- not the correct answer
Ok....i know you are indian....but i can help...but this is site of usa...for india go to brainly.in....
ok.....
abhai Naoroji (1825-1917) was an Indian political leader and one of the founders of the Indian National Congress. A leading nationalist author and spokesman, he was the first Indian to be elected to membership in the British Parliament.
Dadabhai Naoroji was born into a leading Parsi family in Bombay. After an outstanding career at Elphinstone College, Naoroji served briefly as professor of mathematics at Elphinstone. In 1855 Naoroji became a partner in an important Parsi commercial firm in London, and in 1862 he set up his own commercial house there. In the same year he founded the influential East Indian Association to educate the English public on Indian affairs.
HOPE IT HELPS
Coniferous temperate idk if I spelt that correctly