In which sentence does the underlined word suggest the most positive connotation?
a. marigold was initially uncertain about her new laptop computer, but after a few weeks, she decided it was practical.
b. marigold was initially uncertain about her new laptop computer, but after a few weeks, she decided it was serviceable.
c. marigold was initially uncertain about her new laptop computer, but after a few weeks, she decided it was essential.
d. marigold was initially uncertain about her new laptop computer, but after a few weeks, she decided it was useful.