Step 1: Check correct method and parameters for POST request
cy.request() takes method, URL, and body as parameters. cy.request('POST', '/api/items', {name: 'book', price: 10}) correctly uses 'POST', URL, and JSON body.
Step 2: Identify errors in other options
cy.request('/api/items', {name: 'book', price: 10}) misses method, defaults to GET; cy.request('GET', '/api/items', {name: 'book', price: 10}) uses GET with body (invalid); cy.request('POST', '/api/items') misses body for POST.
Final Answer:
cy.request('POST', '/api/items', {name: 'book', price: 10}) -> Option B