FIA

According to Islamic jurisprudence, the nisab (minimum threshold) for zakat on sheep and goats is 40 heads. If the number of sheep and goats is less than 40, no zakat is due. Once the number reaches 40, zakat becomes obligatory, starting with one sheep or goat for 40 to 120 animals, increasing with larger numbers. Therefore, sheep and goats less than 40 are zakat free, making option D (40) the correct answer.

Acupuncture is a traditional medical practice that originated in China thousands of years ago, involving the insertion of needles at specific points on the body to relieve pain and treat various conditions.

The word 'adversary' means an opponent or enemy, which matches option B. The other options do not correctly define 'adversary'.

Tanda Dam was built in 1965 on the Kurram River. Therefore, option D is correct.

Steve Jobs is famously known for co-founding Apple Inc., where he earned his fame for pioneering personal computers and consumer electronics. The other options are unrelated to his career.

Hashim Shah is the recognized author of 'Qissa Ahsan Al Qassas,' a famous Punjabi Sufi poetic work. The other options are notable poets but not associated with this specific work.

Martin Luther is credited with inaugurating the Protestant Reformation by posting his Ninety-Five Theses in 1517, challenging the practices of the Catholic Church. The other options are unrelated to the Reformation.

A spanner is specifically designed to tighten or loosen nuts and bolts by gripping their flat sides. Screwdrivers are used for screws, chisels for carving or cutting, and hammers for striking.

The Suez Canal connects the Mediterranean Sea to the Red Sea, providing a direct shipping route between Europe and Asia without navigating around Africa. This makes option B correct.

To find the largest possible box size, we need the greatest common divisor (GCD) of 408, 462, and 516. The GCD is 24, so the largest box capacity is 24 kilograms.