Visitor Visa - B2

I was interviewed on 30/12/2018 for USA visit visa at USA consulate Dehran Saudi Arabia. My visa was rejected and interview was as follows.

VO; Good morning sir

Me: Good Morning

VO: Can I have your passport

Me: Slide the passport to visa officer

VO: Why are travelling to USA

Me: For tourism

VO; You visited Paris for how many days

Me: For five days

VO: Do you have house in Pakistan

Me: Yes

VO: Did you rent the house

Me: No my mother and brother are living there

VO: Where is your family

Me: Here in Saudi Arabia

VO: Can I have their Iqama copies
Me: I do not have Iqama copies but I have their passport copies

VO: Showed the passport copies to another officer

VO: Are you travelling alone or with your family

Me: Most of the time I am travelling alone

VO: You have Bahrain valid work Visa

Me: Yes my company have project there in Bahrain

VO: How long you stayed in Bahrain

Me: I stayed for 4 to 5 months

VO: Which other countries you visited
Me: Bahrain, Qatar, UAE, Turkey and France
VO: Show me the Company Introduction letter and Bank statement
Me: Slide the Company letter and Bank statement
VO: Read the letter and Bank statement and asked for one transaction of 15oooSAR
Me: I informed that is my house rent company giving me in cash and I have transferred to my account
VO; Any further information you want tell about your application
Me: No Sir, I have been mentioned all information in my application
 VO: I can not support you at this time
Me: Thanks

Can some body support me what was wrong in my interview

I have another interview on 31/12/2018, kindly support me for this interview.

Thanks Zahid