Final answer:
Paroxetine is an SSRI antidepressant that lacks strong sedative effects and is one of the widely prescribed antidepressant categories due to its efficacy and milder side effects.
Step-by-step explanation:
The antidepressant among the options provided that does not have strong sedative effects is B. Paroxetine. Paroxetine is an SSRI (Selective Serotonin Reuptake Inhibitor) that is designed to increase the levels of serotonin in the central nervous system without producing strong sedative effects, unlike other antidepressants such as trazodone, doxepin, clomipramine, and mirtazapine, which can have sedating qualities. SSRIs like paroxetine are known for having fewer anticholinergic side effects compared to other types of antidepressants, like the tricyclics or MAOIs, and are some of the most widely prescribed antidepressants in many countries due to their efficacy and milder side effect profile.