Questions

In the above options, sperms are the haploid cells. In humans, haploid cells are those have only half the number of usual number of chromosomes. Sperm, gamates and egg cells are the haploid cells examples.

Sound waves cannot be transmitted through vacuum. 

Horography is an art of constructing watches or dials for measurement of time.

DNA is not a single stranded and does not have amino acids. Hence options, b & C are eiminated. Dna is a double helix structure containing nucleobase—either cytosine (C), guanine (G), adenine (A), or thymine (T)—as well as a monosaccharide sugar called deoxyribose and a phosphate group. 

TABC stands for Texas Alcoholic Beverage Commission. The Texas Alcoholic Beverage Commission regulates the sales, taxation, production, trade, and advertising of alcoholic beverages in Texas. Alcohol Seller/server Training regulated by this regulatory body is also called TABC Certification. It makes the rules the rest of us have to follow, and if you want to get a job serving alcohol in Texas, getting TABC certified is your first step.

The meanings of the given words are as follows:
Zealous: having or showing zeal
Droopy: hanging down limply
Gigantic: of very great size or extent; huge or enormous
Tenacity: the quality or fact of being able to grip something firmly; grip
Assiduity: constant or close attention to what one is doing
Fervent: having or displaying a passionate intensity
Apathetic: showing or feeling no interest, enthusiasm, or concern
Conceited: excessively proud of oneself; vain
Capacious: having a lot of space inside; roomy
Hilarity: extreme amusement, especiallywhen expressed by laughter
Livid: furiously angry
Therefore, it can be observed that option C i.e. ‘fervent, apathetic’ forms a synonym- antonym pair of ‘zealous’.