In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".

[header] How to buy a last minute cheap flight [title] Check airline newsletters, websites that specialize in last minute air travel and the travel section of your local newspaper to find last minute deals on flights. [step] Sometimes you can save money by booking flights late because airlines that have not filled their planes will offer discount fares. [title] Compare airfares from different airlines, websites and travel agencies. <sep> (A) [step] Look at every airline's website so that you can compare and contrast prices. [title] Opt for free flights as before, otherwise follow the full booking program and you'll not miss your flight in a long time. (B) [step] Try booking flights from big-ticket airlines such as kiwi airlines and delta. [title] Compare prices from travel agencies that are offering cheaper flights. (C) [step] Purchasing flights directly from the airline is not always the cheapest deal, so check out a few different travel websites and travel agencies to compare prices. [title] Search for flights during undesirable days and times. (D) [step] Compare each airline's prices with the prices you are interested in. You might be able to find a cheaper flight for free.
C

[header] How to outfit a basic toolbox [title] Purchase a tape measure to include in your toolbox. [step] A tape measure comes in handy when you need to know the dimensions of a room before buying a new piece of furniture or centering a picture on the wall. [title] Include a box knife in your toolbox. <sep> (A) [step] A box knife, or utility knife, can be used to open packages, cut small pieces of wood or slice cardboard. [title] Put duct tape in your toolbox. (B) [step] It is critical that you list the dimensions which make up that box. If you don't, it will go in unusable pieces. (C) [step] A box knife (or a small, average sized box knife) can make a toolkit for a desktop store. For a playroom around a certain age, a box knife can provide yourself with more choice of tools and accessories and will make enough room for accessories that might otherwise be overlooked. (D) [step] This is to make sure all the box knives you buy have empty compartments and can be tried easily. [title] Purchase a pack of set base bonuses.
A

[header] How to get an investor mortgage [title] Demonstrate good credit. [step] Lenders will examine your credit score and verify your income before offering you an investor mortgage. [substeps] Expect to be held to higher standards than if you were applying for a non-investor residential mortgage. <sep> (A) Once you obtain an investor mortgage, however, lenders will continue to evaluate you and expect you to be more adaptive to your current circumstances and abilities. Practice good credit, but be ready to slip into difficult situations. (B) Lenders want to make sure that you are financially able to pay off your debt within the first six months of the existing loan term. Credit score counts, so it's important to keep your credit score as good as your potential lenders'. (C) If you take this extra step and do not show any problem with your credit, your chances of getting an increase are extremely high. Additionally, lenders will take advantage of the report that you have sent them and evaluate that information later. (D) Lenders will want to make sure your income and assets will cover your own mortgage payment and debt obligations, as well as the new payments you will need to make on the investment property. Maintain a credit score of at least 740.
D