Answer:
The lowest limit in 2016 for Roth IRA was $5,500 for age below 50
Explanation:
Nowadays the lowest limit of the Roth IRA for a person who is aged below 50 years is $6000 and if the person is above 50 years then he can contribute to the maximum $7000. So the answer here is option C (according to the Roth IRA 2018) but remember for 2020 its $6000 for age below 50 and $7000 if you are age above 50.