Guava is a plant in the myrtle family (myrtaceoe) genus pidium. the guava tree is not big. it it about 33 feet with spreading branches the bark is smooth with green or reddish brown color. the plant's branches are clove to the ground. its young twigs are soft. it has hard dark elliptic leaves. it is about 2-6 inches long and 1-2 inches wide. the flowers are white, with five petals and numerous stames guava is cultivated in many tropical and subtropical countries for its edible fnit. guava fruit, usually 2 to 4 inches long, is round or oval depending on the species. varying between species, the skin can be any thickness, it is usually green when unripe, but becomes yellow or maroon when ripe. the flesh of guava fruit is sweet or sour. the colour of the flesh may be white, pink, yellow, or red, with the seeds in the central part of the flesh, the seeds are numerous but small. in some good varieties, they are edible. actual seed counts have ranged from 112 to 535. guava fruit is rich with vitamins a and c. omega-3 and omega-6, fatty acids and high levels of dietary fibre18)"guava is cultivated in many tropical and subtropical countries. what is the active form of the sentence?
a.many tropical and subtropical countries culltivate guava
b.many tropical and subtropical countries are cultivating guava
c.many tropical and subtropical countries had cultivated guava
d.many tropical and subtropical countries cultivated guava.​