Answer: Theta Guardian
Explanation:
THETA is used to stake as a Validator or Guardian node, contributing to block production and the protocol governance of the Theta Network. By staking and running a node, users will earn a proportional amount of the new TFUEL generated. Relayers earn TFUEL for every video stream they relay to other users on the network.
 
        
             
        
        
        
Make sure you but no copyright, author, and date of publication, that may help.
        
             
        
        
        
I guess the correct answer is Project
If thе usеr is intеrеstеd in sеlеcting thе valuеs οf a fеw attributеs, rathеr than sеlеctiοn all attributеs οf thе Tablе (Rеlatiοn), thеn οnе shοuld gο fοr Prοjеct Οpеratiοn.
 
        
             
        
        
        
Answer:
Customer Table
- Customer name 
- Customer id
Product Table
- Product id/number (primary key, auto increment)
- Product name
- Product sale price
Transactions Table
- Transaction Id
- Customer Id
- Product id
- Quantity
- Price
- Date 
Explanation:
Natalie wants to fetch following information from database
- Look up customer name and sale price
- Sort items in db by product number
To lookup customer name and sale price perform a join on Transactions table and Customer table.Assuming database is build in mysql the query to fetch required results would be
select transction.productId,transaction.customerid,customer.customername from transactions join customer ON 
customer.customerid=transcation.customerid
where productid="user provided product id of returned product"
For sorting products by number set produc number in product table a auto increment primary key