Assuming the underlined word is 'singing,' the correct answer is going to be A. participle.
A participle and a gerund look the same - they both end in -ing. However, participles are used as adjectives (as is the case here), whereas gerunds are used as nouns. Infinitives always have the same form, which is TO + verb.
The first inauguration<span> of </span>Franklin D<span>. </span>Roosevelt<span> as 32nd President of the United States was on March 4 1933. The </span>inauguration<span> marked the commencement of the first four year term of </span>Franklin D<span>. </span>Roosevelt<span> as President and John Garner as Vice President.</span>
The emancipation proclamation meant that all slaves still held in the rebellious states are now free. And Juneteenth is a holiday in which the day slaves where freed.
The answer is A= people electing representatives to decide for them