Hey there! So I did A and F since C is just pretty similar to F. Before anything else, you may have a different answer with what I did but it may be also correct since there could be paths for synthesis. So first for A, the first step is just converting it to a good leaving group, next step is elimination via a bulky base, the last step is oxymercuration. C will pretty much have the same steps as A just without the first step since it already has a good leaving group. Now for F, we just simply did an E2 for the first step, then form a halohydrin to get the final product. I hope this helps!