There is no such deduction allowed for 2019 returns. The $300 limit on charitable contributions by individuals using the standard deduction is allowable only for 2020 returns (unless Congress extends it).
A credit for income taxes paid to a foreign country or U.S. possession. 401(k) plan. A deferred pay plan, authorized by Section 401(k) of the Internal Revenue Code, under which a percentage of an employee’s salary is withheld and placed in a savings account or the company’s profit-sharing plan. Income accumulates on the deferred amount until withdrawn by the employee at age 59?