 for all \( x \in \mathbb{R}^d \)</label></li>
            </ul>
            <div class="feedback" id="feedback1"></div>
        </div>

        <div class="question">
            <p>Which of the following statements is true about convex functions?</p>
            <ul class="options">
                <li><label><input type="radio" name="q2" value="0"> a) A convex function can have multiple global minima.</label></li>
                <li><label><input type="radio" name="q2" value="1"> b) A strictly convex fu