The correct option is
A Blood minus blood corpuscles and plasma protein
The glomerular ultrafiltrate has the same composition as blood plasma ( i.e blood minus blood corpuscles) but it is normally free of protein (except for about 10 mg/dl of low-molecular-weight protein). Some of the filtered products include water, glucose, electrolytes, amino acids, urea, uric acid, creatinine, and ammonia. As the glomerular filtrate passes through the proximal tubules, a large portion of the water, glucose, amino acids, sodium chloride, bicarbonate, potassium, calcium, phosphate, and other threshold substances needed by the body are reabsorbed and pass back into the bloodstream.Thus glomerular filtrate is blood minus blood corpuscles and plasma protein.
So, the correct answer is option A.