Concept: Foster means to encourage development or growth, often by providing care and support (प्रोत्साहित करना, पालन-पोषण करना).
Explanation: The word "Foster" indicates actively helping something to thrive.
Example: The teacher worked to foster creativity in students.
Among the options, "Promote" (बढ़ावा देना) directly means to support and advance something.
Example: She was promoted for her exceptional performance.
Thus, "Promote" is the correct synonym.
Other options are opposites:
"Neglect" means to fail to care for; "Reject" means to refuse; "Oppose" means to resist.
So only "Promote" matches the meaning of Foster.
Answer: Promote (Option C)