I am an international Masters student at a university in the United States currently on F-1 visa. I am in my last semester of study and thus applying for Post-completion OPT. For this, one of the forms that I need to fill is form I-765. One of the fields in this form asks "Place of last entry into the U.S."
I came to US from my home country in Aug 2015 in an Etihad flight which had a layover at Abu Dhabi airport before landing on SFO International Airport. Since, Abu Dhabi now has a facility to to process all immigration and customs clearance, I got my pre-clearance at Abu Dhabi by CBP officers and my visa was stamped with AUH(Abu Dhabi) code. Finally, I caught the connecting flight and landed into the US at the SFO Airport. My travel history document available on CBP website indicates the port of entry as Abu Dhabi.
Now, coming back to my questions about the field in the form I-765, what should be my answer to the question:"Place of last entry into the U.S." ?
Should it be Abu Dhabi(International Airport) or San Francisco(International Airport)?
Thanks in advance.