How to change the alt attribute of all <img> elements to 'New Image' using jQuery?

A). $('img').alt('New Image');

B). $('img').setAttribute('alt', 'New Image');

C). $('img').attr('alt', 'New Image');

D). $('img').setAttr('alt', 'New Image');

Which jQuery method is used to add the class 'highlight' to all <div> elements?

A). $('div').addClass('highlight');

B). $('div').class('highlight');

C). $('div').attr('class', 'highlight');

D). $('div').applyClass('highlight');

Which jQuery method is used to change the opacity of all <div> elements to 0.5?

A). $('div').setOpacity(0.5);

B). $('div').opacity(0.5);

C). $('div').css('opacity', 0.5);

D). $('div').opacity = 0.5;

How to change the font size of all elements to 16 pixels using jQuery?

A). $('span').style('font-size', '16px');

B). $('span').fontSize('16px');

C). $('span').css('font-size', '16px');

D). $('span').font('16px');

How to change the font family of all<p> elements to 'Arial' using jQuery?

A). $('p').style('font-family', 'Arial');

B). $('p').fontFamily('Arial');

C). $('p').css('font-family', 'Arial');

D). $('p').font('Arial');

How to add the class 'active' to all<li> elements within a<ul> using jQuery?

A). $('ul li').setAttribute('class', 'active');

B). $('ul li').add('active');

C). $('ul li').addClass('active');

D). $('ul li').setAttribute('class', 'active');

How to remove the href attribute from all anchor elements using jQuery?

A). $('a').removeAttr('href');

B). $('a').removeAttr('href');

C). $('a').deleteAttr('href');

D). $('a').removeAttribute('href');

How to change the src attribute of an<img> element using jQuery?

A). $('img').attr('src', 'newimage.jpg');

B). $('img').src = 'newimage.jpg';

C). $('img').setAttribute('src', 'newimage.jpg');

D). $('img').srcAttr('newimage.jpg');

How to remove the class 'hidden' from all elements with the class 'element' using jQuery?

A). $('.element').removeClass('hidden');

B). $('.element').remove('hidden');

C). $('.element').deleteClass('hidden');

D). $('.element').removeClassName('hidden');

Which jQuery method is used to change the background image of all <div> elements?

A). $('div').bgImage('url(image.jpg)');

B). $('div').css('background-image', 'url(image.jpg)');

C). $('div').background('url(image.jpg)');

D). $('div').setImage('url(image.jpg)');