Final answer:
The lowest standard deduction out of the given options would be for the HOH 55 years old, as other categories typically qualify for additional standard deduction amounts based on age or blindness.
Step-by-step explanation:
The question is which filing category has the lowest standard deduction. As of the tax laws that were in effect for previous years, older individuals and the blind usually get additional amounts added to the standard deduction. Thus, the options given include individuals who are 65 and older, blind, or married filing jointly, which all suggest a higher standard deduction than the base amount for younger or non-disabled filers.
In this case, none of the provided scenarios have the lowest standard deduction because they all imply additional standard deduction amounts based on age or disability. The category likely to have the lowest standard deduction would be a young, single filer who is not blind or over a certain age (typically 65).
'HOH 55 years old' would have the lowest standard deduction out of the given options since head of household filers usually receive a higher standard deduction than single filers, but being 55 does not entitle one to the extra standard deduction for age.