get_the_terms not working in custom plugin - wordpress

Question

I have created custom plugin which stores the user data in db table. The form have dropdown which have taxonomy id as value.
The form is working and taxonomy id and other user data is inserting in the database.
In the wp admin panel i am showing the data that has been inserted in the database. All the data is coming with the taxonomy id. But when i use get_the_terms to get the name according to the taxonomy id it shows nothing.
Here is the code:
global $wpdb;
$table_name=$wpdb->prefix .'opu_userdata';
$data=$wpdb->get_results("SELECT * FROM $table_name order by id DESC");
<table class="table table-bordered" id="tow-table">
<thead>
<tr>
<th>Sno</th>
<th>Name</th>
<th>Email</th>
<th>Mobile</th>
<th>Product</th>
<th>Product Sub</th>
<th>Annual Salary</th>
<th>Employee Type</th>
<th>Age</th>
</tr>
</thead>
<tbody>
<?php
$sn=1;
foreach($data as $data):?>
<tr>
<td><?php echo $sn;?></td>
<td><?php echo ucwords($data->name);?></td>
<td><?php echo $data->email;?></td>
<td><?php echo $data->mobile;?></td>
<td><?php echo $data->product;?></td>
<td><?php
if($data->product=="bank-account"){
$id=$data->product_sub;
$n=get_the_terms($id,'account_type');
echo $id; /////if i echo id it prints the id perfectly but when i try $n[0]->name it shows nothing (var_dump($n) shows bool(false) )
}?></td>
<td><?php echo $data->annual_salary;?></td>
<td><?php echo $data->emp_type;?></td>
<td><?php echo $data->age;?></td>
</tr>
<?php $sn++; endforeach;?>
</tbody>

Answer 1

Ok i got the solution. I have to use get_term_by instead of get_the_terms to get the term name according to the taxonomy id
Here is the solution:
<table class="table table-bordered" id="tow-table">
<thead>
<tr>
<th>Sno</th>
<th>Name</th>
<th>Email</th>
<th>Mobile</th>
<th>Product</th>
<th>Product Sub</th>
<th>Annual Salary</th>
<th>Employee Type</th>
<th>Age</th>
</tr>
</thead>
<tbody>
<?php
$sn=1;
foreach($data as $d):?>
<tr>
<td><?php echo $sn;?></td>
<td><?php echo ucwords($d->name);?></td>
<td><?php echo $d->email;?></td>
<td><?php echo $d->mobile;?></td>
<td><?php echo $d->product;?></td>
<td><?php
if($d->product=="bank-account"){
$id=$d->product_sub;
$term=get_term_by('id',$id,'account_type');
echo $term->name;
}?></td>
<td><?php echo $d->annual_salary;?></td>
<td><?php echo $d->emp_type;?></td>
<td><?php echo $d->age;?></td>
</tr>
<?php $sn++; endforeach;?>
</tbody>