How to access value of data inside nested object in react

I am new to react and having problem trying to access data inside of the nested object. I am trying to create a app where the condition checks todays date with the date of the list and if the condition is true it returns the list.

The list looks like this :

const data = [{
    id: 1,
    name : 'Ashley',
    birthday : {
      year : 1998,
      month: 5,
      date : 22,
    },
    img : 'img'
  },
  {
    id: 2,
    name : 'Bill',
    birthday : {
      year : 1993,
      month: 2,
      date : 12,
    },
    img : 'img'
  },
];

I have made a date object with which the comparision will be done.

const today = new Date();
const year = today.getFullYear();
const month = today.getMonth()+1;
const date = today.getDate();

In the list, the birthday contains three other values and i can not access them using 'filter' method.

The rest of code are below :

function App() {
  const [people, setPeople] = useState(data)
  return (
    <section className = 'container'>
      <h1>{List.length} birthdays today</h1>
    <List people= {people}/>
      <button className="btn" onClick ={() => { setPeople([])}}>Clear All</button>
    </section>
  )
}

const List = ({people}) =>{
  return (
    <>
     { data.filter((person) => {
       const {id, name, birthday, img} = person;
       const age = year-person.birthday.year;
      if(person.birthday.month === month && person.birthday.date === date){
        return(
         <article className= 'person' key = {id}>
            <h2>{name}</h2>
            <p>{age} years old</p>
            <img src = {img} alt = "person"></img>
         </article>
       )}
       return (
         []
       )
     })} 
    </>
  )
}

Sorry about the long description.