What happened in 2014 that made the ongoing civil war in Syria even more complicated?

A: the Arab spring led to demonstrations in Syria.

B: the Assad government used chemical weapons.

C: ISIS launched an attack on Syria.”””

D: The United States attacked a Syrian air base.”””

I am stuck between C and D pls help

no i swear its c i got a 100

https://www.google.com/search?q=war+in+syria+2014&oq=war+in+syria+2014&aqs=chrome..69i57j69i60l2.6529j0j7&sourceid=chrome&ie=UTF-8

Read widely, and let us know what you decide.

??? what are the answers ???

Is it a or c

To determine what happened in 2014 that made the ongoing civil war in Syria even more complicated, we can evaluate the options provided.

Option C states that ISIS launched an attack on Syria. This is partially true. ISIS (Islamic State of Iraq and Syria) indeed expanded its operations into Syria in 2014, seizing large territories and establishing a self-proclaimed caliphate. This certainly added another layer to the already complex conflict in Syria.

Option D suggests that the United States attacked a Syrian air base. This particular event occurred in 2017, not 2014. In response to a chemical weapons attack on civilians by the Assad government, the United States, under the Trump administration, launched missile strikes on a Syrian air base. Therefore, option D is not the correct answer for what happened in 2014.

Considering the information provided, option C, the launch of ISIS attacks on Syria, is the correct answer for what happened in 2014 that made the ongoing civil war in Syria even more complicated.

It's A.