A. services
B. goods and services
C. tangible goods
D. crude oil
Correct Answer: Option A
A. services
Products
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Membrane Filtration: Principles, Advantages, and Water Treatment Applications
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.
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Cell Organelles and Animal Cell Ultrastructure
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.
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Fluorochromes and Immunofluorescence Applications in Food Microbiology
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.
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Comparative Analysis of Nucleic Acids, Gene Transfer Mechanisms, and Vector Properties
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.
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Mutations and DNA Replication: Key Concepts in Genetics
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.