What is the implication of the GCC in OBOR to Iran-GCC Relations?

The GCC’s views of ‘One Belt, One Road’ Initiative: the Implication on the Case of Iran.

Question : What is the implication of the GCC in OBOR to Iran-GCC Relations?

To analyse in the essay
-What is OBOR?
-How do the GCC states look at or what is the GCC’s interest in this OBOR initiative of China?
-What will the GCC would get from this? or is this part of the GCC’s look east policy?
-Would OBOR bring the GCC and Iran closer to China?
-What about the position of the GCC and Iran in the region?
– Will China be able to avoid falling into the traps of picking sides in Middle Eastern conflicts with ethnic/sectarian understones while maintaining its over all excellent relations with all major oil/gas producers in the region?