Canada balsam is an oleoresin obtained from _______.

The correct option is B

Abies balsamea

The correct option is B.

Explanation of the correct option:

1. Balsam fir gum, often known as Canada balsam, is made from Abies balsamea, which grows in Quebec and New Brunswick, Canada.
2. It's also known as Canada turpentine, and it's a type of turpentine that belongs to the oleoresin family (natural products consisting of a resin dissolved in essential oils).
3. Canada balsam is a viscid, yellowish, or slightly greenish liquid with a pleasant, terebinthinate odour and a bitter, slightly acerbic taste.
4. It gradually dries when exposed to air, forming a translucent mass, and is a useful cement, especially for mounting specimens in microscopy and for glass in optical work.

Explanation of the incorrect option:

Option A:

1. Pinus species is a member of the Pinaceae family.
2. Gymnosperms lack an ovary that encloses the ovules, hence these plants are gymnosperms.
3. Cones are the seeds produced by these plants and are used in baking and cooking.
4. This tree's bark is edible and contains a lot of vitamins A and C.

Option C:

1. Impatiens balsamina is a member of the Balsamianaceae family of plants.
2. Garden balsam and rose balsam are two more names for it.
3. It's only found on the Indian subcontinent.
4. The plant has a number of physiologically active chemicals that have traditionally been used to cure snakebite and jaundice.
5. Anti-inflammatory and antibacterial properties are found in the plant.

Option D:

1. The common sunflower is another name for Helianthus annus.
2. The plant is used as a crop for the production of edible oil and edible fruits.
3. The blooms are also grown for decorative purposes.

Final answer: Canada balsam is an oleoresin obtained from Abies balsamea.