JSFiddle - React, Tailwind, and code Playground

HTML

<table id="table-results">
		<tr>
			<th>Question</th>
			<th>inovation</th>
			<th>all-round</th>
			<th>coordination</th>
			<th>keeper</th>
			<th>analytic</th>
		</tr>
		<tr>
			<td>I.</td>
			<td>D=2</td>
			<td>A=1</td>
			<td>E=10</td>
			<td>C=8</td>
			<td>B=4</td>
		</tr>
		<tr>
			<td>II.</td>
			<td>A=6</td>
			<td>C=1</td>
			<td>B=2</td>
			<td>D=5</td>
			<td>E=1</td>
		</tr>
		<tr>
			<td>III.</td>
			<td>E=4</td>
			<td>B=1</td>
			<td>D=3</td>
			<td>A=2</td>
			<td>C=7</td>
		</tr>
		<tr>
			<td>Suma</td>
			<td class="sum">12</td>
			<td class="sum">3</td>
			<td class="sum">15</td>
			<td class="sum">15</td>
			<td class="sum">12</td>
		</tr>
	</table>

CSS

.text-bold {
    text-weight: 700;
}

table {
	margin: 16px 0;
	color:#333;
	border-width: 1px;
	border-color: #666;
	border-collapse: collapse;
}
table th {
	border-width: 1px;
	padding: 4px;
	border-style: solid;
	border-color: #666;
	background-color: #FBDD9B;
}
table td {
	border-width: 1px;
	padding: 4px;
	border-style: solid;
	border-color: #666;
	background-color: #fff;
}

JavaScript

var sum = $('.sum');
var arr = sum.map(function(_,x) { return +$(x).text() }).get();
var max = Math.max.apply( Math, arr );
var out = arr.filter(function(x) { return x != max });
var nxt = Math.max.apply( Math, out );
    
sum.filter(function() {
    var numb = +$(this).text();
    return numb == max || numb == nxt;
}).css('font-weight', 'bold');