Karen owns and manages her single-member LLC, which provides a wide variety of accounting services to her clients. She is married and will file a joint tax return with her spouse, Mathew. Her LLC reports $300,000 of net income, W-2 wages of $120,000, and assets with an unadjusted basis of $75,000. Their taxable income before the QBI deduction is $275,000) (this is also their modified taxable income). What is their QBI deduction for 2019

The retirement accounts from the given options are:
IRA
401(k)
403(b)

A 401(k) refers to a retirement saving plans that are sponsored by an employer and it gives laborers a chance to spare and contribute a bit of their paycheck before charges are taken out. Expenses aren't paid until the point that the cash is pulled back from the record. 
A 403(b) plan refers to a retirement plan that is for particular representatives of government funded schools, tax excluded associations and certain ministers and these plans can put resources into either annuities or shared assets. 
IRA (individual retirement account)is a plan for the people who may set up to organize and get ready for retirement. For the most part, an IRA design enables you to spare cash and concede charges or taxes until the point when you retire.