Which nut is never sold in its shell because the shell is poisonous?

Here is the question :

WHICH NUT IS NEVER SOLD IN ITS SHELL BECAUSE THE SHELL IS POISONOUS?

Here is the option for the question :

• Pecan
• Almond
• Cashew
• Walnut

The Answer:

And, the answer for the the question is :

Explanation:

[STC0018080]. Due to the cashew shell’s toxicity, consumers can never purchase cashews in their shells. Anacardiaceae, which includes cashews, is the same family as poison ivy. A portion of the cashew plant contains urushiol, an oily toxin that can be lethal if consumed, much like poison ivy and other family members. However, the nuts themselves do not contain the irritants; only the shell oil does. Before being made available for ingestion, cashew seeds must go through a high-temperature roasting procedure to get rid of the potentially dangerous urushiol oil.