Step 1: Understand the goal.
Ranveer wants the diet with the highest protein and the lowest fat, so for each option we total the protein grams and the fat grams from the percentages given in the table for products A, B and C.
Step 2: Read product C's profile.
Product C carries a high protein share with a relatively low fat share, making it a strong single-product choice when taken in bulk.
Step 3: Evaluate the 350 g of C option.
Taking 350 g of C alone gives a large protein total of about 70 g while the fat total stays modest at about 35 g, a clean high-protein low-fat result.
Step 4: Compare the mixed options.
The options blending A or B with C bring in items whose fat share is higher or whose protein share is lower, so their fat totals climb or their protein totals fall short of the pure-C option.
Step 5: Pick the best trade-off.
Among all four choices, 350 g of C delivers the top protein figure without pushing the fat figure up, so it dominates the mixed alternatives.
Step 6: Conclude.
The best diet is 350 grams of C, matching option 3.
\[ \boxed{350 \text{ grams of C}} \]