Which group of words in this sentence is a dependant clause that contains a phrase?

Bearden was supporting young minority artists when he helped establish the Clinque
Gallery in 1969.
A. Bearden was supporting young minority artists
b. when he helped establish the Clinque
Gallery in 1969.
C. was supporting young minority artists when he helped
D establish the Clinque
Gallery in 1969.

When he helped establish the Cinque Gallery in 1969.

explanation:

the goblins and dwarves have different perspectives of things. bilbo is a hobbit and goblins dwarves and hobbits all believe and do a different way of living

after the signature of the treaty of versailles in june 1919, germany lost nearly 25,000 square miles and a population of 7 million people. these territories included eupen-malmedy area and moresnet which were ceded to belgium. regarding relations with france, germany ceded the sovereignty of the saar coal mines to this country, as well as the provinces of alsace-lorraine.

explanation: