Multi-select problem: How does the next paragraph end?

How to help vegetables survive a hot summer
Grow hardy vegetables.
From the outset select vegetables that can tolerate less water and more heat. Examples include potatoes, sweetcorn and new zealand spinach.

Options:
(a). Grow vegetables that are, by nature, hardy. These vegetables should not be any bigger than 2.4 inches (5.9 cm).
(b). If growing vegetables that can handle heat, spend some time getting the water you need. Do not propagate one vegetable at a time.
(c). Use compost as a moisture-retaining layer. Add a lot of compost from the start and keep the compost layer well maintained throughout the growing season.
(d). Most vegetables need to be at least 65% nutrient rich (peas, beans, legumes, tomatoes, apples, cucumbers, lettuce). But even vegetables that are cheap and hardy should be picked and kept from garden pests.
(c).